All Tools Directory
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Text & Writing Tools
Fast client-side utilities for counting words, converting case, diffing text, cleaning duplicates, and generating slugs.
Text Analysis
Processed in your browser
Text Difference Checker
Compare two text blocks side-by-side or line-by-line to find additions, deletions, and modifications.
Text Analysis
Processed in your browser
Word Counter
Real-time word, character, sentence, paragraph, reading time, and speaking time counter.
Text Cleaning
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Find and Replace
Search and replace words or patterns in text using plain text or regular expressions.
Text Cleaning
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Remove Duplicate Lines
Remove duplicate lines from text lists, trim empty whitespace, and sort results alphabetically.
Text Transformations
Processed in your browser
Slug Generator
Generate clean, URL-friendly slugs from strings with custom separators and punctuation stripping.
Text Transformations
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Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case instantly.
Text Analysis
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Readability & Flesch-Kincaid Score Calculator
Calculate Flesch Reading Ease, Grade Level, and sentence complexity breakdown.
Text Analysis
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Side-by-Side Text Diff & Comparison Checker
Compare two texts side-by-side with split visual diffs and line-by-line highlight changes.
Text Cleaning
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Invisible Zero-Width Character Purger & Detector
Detect, reveal, and strip hidden zero-width spaces (ZWSP, ZWNJ, BOM) from pasted text.
Text Cleaning
Processed in your browser
Alphabetizer & Natural List Sorter
Sort lists alphabetically, numerically, reverse, case-sensitive/insensitive, and deduplicate.
Text Cleaning
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Text Line Numberer, Prefix & Trimmer
Number text lines, trim leading/trailing whitespace, and add custom line prefixes and suffixes.
Text Transformations
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Universal Case Converter (Camel, Pascal, Kebab, Snake)
Convert text simultaneously between camelCase, PascalCase, kebab-case, snake_case, and CONSTANT_CASE.
Text Transformations
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NATO Phonetic & Morse Alphabet Converter
Spell words accurately using the official NATO aviation phonetic alphabet and Morse code.
Text Transformations
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Upside-Down & Inverted Text Generator
Flip text upside down and backwards using Unicode character mapping.
Text Transformations
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Zalgo & Glitch Text Generator
Create chaotic, cursed, and glitched Zalgo text effects with adjustable mark intensity.
Text Cleaning
Processed in your browser
Sort Text Lines
Sort lines alphabetically, numerically, by character length, or shuffle with whitespace trimming and deduplication.
Text Transformations
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Morse Code Translator & Audio Player
Translate text to Morse code and decode Morse with live Web Audio playback, speed control, and pitch settings.
Text Transformations
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Text Reverser & Upside-Down Flipper
Reverse text characters, invert word orders, reverse line sequences, and flip text upside-down with Unicode symbols.
Text Cleaning
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Text Cleaner & Whitespace Sanitizer
Clean and sanitize messy text by removing duplicate spaces, blank lines, HTML tags, smart quotes, emojis, and unwanted formatting.
Text Transformations
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Case Converter Pro (Camel, Snake, Kebab)
Convert text into camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and Title Case in real-time.
Text Analysis
Processed in your browser
Reading Time & Speaking Duration Calculator
Estimate silent reading time and speaking speech duration with WPM speed tiers and readability statistics.
Text Cleaning
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URL, Link & Domain Extractor
Extract all HTTP/HTTPS links, domains, and email addresses from raw text, code, or unstructured markdown.
Text Cleaning
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Line Break Remover & Paragraph Formatter
Remove unwanted newlines, fix broken paragraphs from PDF copies, and replace line breaks with spaces or commas.
Text Transformations
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ASCII Flowchart & Box-Drawing Tool
Create beautiful Unicode & ASCII flowcharts, network architecture diagrams, and bordered boxes for READMEs and code comments.
Text Cleaning
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HTML Tag Stripper & Text Extractor
Remove HTML tags, script blocks, and styling to extract clean plain text and paragraphs from web markup.
Text Analysis
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Email & Phone Number Extractor
Scan unstructured text and extract all unique email addresses and phone numbers into clean lists.
Text Transformations
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ASCII Art Text Banner Generator
Convert plain text into retro ASCII banner art and block headlines for code comments and README files.
Text Transformations
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Variable Case & Slug Converter
Convert strings between kebab-case, snake_case, camelCase, PascalCase, CONSTANT_CASE, and dot.case.
Text Analysis
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Local AI Text Summarizer
Summarize articles, documents, and transcripts 100% in-browser using WebGPU/WASM client-side AI with zero data uploads.
Text Analysis
Processed in your browser
Semantic Similarity Calculator
Calculate cosine semantic similarity and vector distance between two texts using in-browser 384-dimensional embeddings and WebGPU.
Text Analysis
Processed in your browser
Side-by-Side Text Diff & Comparison Tool
Compare two text snippets side-by-side or in unified view with word-level and character-level difference highlighting, line counters, and difference statistics.
Text Transformations
Processed in your browser
Case & URL Slug Converter Suite
Convert text into camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, Title Case, Sentence case, dot.case, and SEO-friendly URL slugs with diacritic stripping.
Developer Tools
Essential browser utilities for software engineers: JSON prettifier, regex tester, UUID generator, and markdown previewer.
Web Encoding & Escaping
Processed in your browser
Binary to Hexadecimal & ASCII Converter
Base converter between binary (0101), hex, octal, decimal, and ASCII characters.
Developer Generators
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UUID Generator
Generate cryptographically random V4 UUIDs individually or in bulk with format options.
Web Encoding & Escaping
Processed in your browser
HTML Entities Encoder & Decoder
Convert text characters to and from HTML named, decimal, and hexadecimal entities.
JSON Tools
Processed in your browser
JSON Formatter
Prettify, indent, format, and minify JSON data with instant syntax validation and error pinpointing.
JWT & Tokens
Processed in your browser
JWT Payload Constructor & Claim Builder
Build valid JSON Web Token (JWT) payload structures with RFC 7519 registered claims.
JSON Tools
Processed in your browser
JSON Validator
Strict RFC 8259 JSON syntax validator with exact line and column error pinpointer.
Regex Tools
Processed in your browser
Regular Expression Visual Component Builder
Assemble regex patterns block-by-block with live visual token explanations.
Markdown Tools
Processed in your browser
Markdown Previewer
Live split-screen GitHub Flavored Markdown editor and sanitized HTML renderer with export options.
General Developer Utilities
Processed in your browser
Cron Expression Humanizer & Next Runs
Translate crontab 5-field syntax into plain human language and calculate next execution times.
Regex Tools
Processed in your browser
Regex Tester
Real-time JavaScript regular expression tester with live match highlighting, flags, and capture groups.
General Developer Utilities
Processed in your browser
Content Security Policy (CSP) Generator
Build and test HTTP Content-Security-Policy header rules to protect web apps from XSS.
General Developer Utilities
Processed in your browser
Visual Git Command Cheat Builder
Interactive visual builder for complex Git commands: undo commits, rebase, stash, and cherry-pick.
General Developer Utilities
Processed in your browser
.htaccess 301 Redirect & Rewrite Generator
Generate Apache .htaccess redirect rules, HTTPS enforcement, non-www, and rewrite configurations.
General Developer Utilities
Processed in your browser
HTTP Status Code Reference & Header Inspector
Searchable HTTP status codes reference (1xx to 5xx) with RFC specs and cache behaviors.
General Developer Utilities
Processed in your browser
OpenGraph & Social Meta Tags Previewer
Generate and preview OpenGraph, Twitter Card, and SEO meta tags for social media sharing.
General Developer Utilities
Processed in your browser
Robots.txt Tester & Validator
Test and validate robots.txt crawl rules against specific User-Agents and URL paths.
General Developer Utilities
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Semantic Versioning (SemVer) Range Comparator
Test package versions against SemVer range constraints (^, ~, >=) and compare releases.
General Developer Utilities
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URL Query Parameter Parser & Reconstructor
Breakdown complex URLs into editable key-value tables and reconstruct clean query URLs.
General Developer Utilities
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SEO URL Slug Cleaner & Formatter
Clean, normalize, and transliterate strings into SEO-friendly URL slugs.
General Developer Utilities
Processed in your browser
XML Sitemap Validator & Inspector
Parse and validate XML sitemaps, checking URLs, lastmod, priority, and syntax integrity.
API & HTTP Tools
Processed in your browser
cURL to Code Converter
Convert cURL commands to JavaScript Fetch, Axios, Python Requests, PHP cURL, and Go instantly.
Database & SQL
Processed in your browser
SQL Formatter & Minifier
Prettify, format, indent, and minify SQL queries. Supports keyword uppercase formatting and compact minification.
JWT & Tokens
Processed in your browser
JWT Decoder & Verifier
Decode, inspect, and verify JSON Web Tokens (JWT) client-side. Inspect claims, expiration dates, and verify HMAC signatures securely.
General Developer Utilities
Processed in your browser
Cron Expression Parser & Visualizer
Parse cron expressions into human-readable English, calculate next execution dates, and build cron schedules interactively.
General Developer Utilities
Processed in your browser
.gitignore File Template Generator
Generate optimized .gitignore files for Node.js, Python, Laravel, Go, Rust, macOS, and IDEs with zero cloud dependency.
Web Encoding & Escaping
Processed in your browser
Text, Binary, Hex & ASCII Converter
Convert text between Binary, Hexadecimal, ASCII decimal, and Octal in real time with custom delimiters.
Developer Generators
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Lorem Ipsum Dummy Text Generator
Generate placeholder dummy text, paragraphs, words, sentences, and HTML-tagged lists instantly.
Developer Generators
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Audio Decibel (dB) Sound Level Meter
Real-time acoustic sound level meter measuring ambient noise decibels (dB SPL) via microphone input.
Developer Generators
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Audio Noise Generator (White, Pink & Brown Noise)
Synthesize soothing White Noise, Pink Noise (1/f), and Brown Noise (1/f²) for focus, sleep, and tinnitus masking.
Developer Generators
Processed in your browser
Musical Note & Pitch Detector Instrument Tuner
Real-time guitar, vocal, and instrument tuner detecting fundamental audio frequency (Hz) and cents deviation.
JSON Tools
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JSON Diff & Compare
Compare two JSON objects or arrays side-by-side with visual key additions, removals, and value modifications.
Developer Generators
Processed in your browser
Base58 Bitcoin & IPFS Encoder & Decoder
Encode and decode Base58 strings used in Bitcoin crypto addresses and IPFS multi-hashes.
Markdown Tools
Processed in your browser
HTML to Markdown Converter
Convert HTML markup, rich text articles, and web snippets into clean, standard GitHub Flavored Markdown.
Developer Generators
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Binaural Beats Stereo Brainwave Generator
Synthesize dual-ear stereo frequency differentials for Alpha, Beta, Theta, and Delta brainwave focus and relaxation.
Markdown Tools
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Markdown Table Generator
Visual spreadsheet table builder with column alignment, CSV/Excel import, and instant Markdown / HTML export.
Developer Generators
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BPM Tap Tempo Beat Counter
Calculate musical Beats Per Minute (BPM) and tempo by tapping along to any rhythm or song.
Developer Generators
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DTMF Telephone Keypad Sound Tone Dialer
Dual-Tone Multi-Frequency (DTMF) telephone keypad sound synthesizer with custom string sequence dialing.
Developer Generators
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Morse Code Audio Synthesizer & Visual Flasher
Translate plain text into International Morse code with live audio beeps and visual flashlight signals.
Developer Generators
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Morse Code Audio CW Translator & Decoder
Bidirectional Morse code translator with Web Audio API sound playback and light flash.
Developer Generators
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Online Metronome & Tempo Trainer
Precision Web Audio metronome with visual pendulum beat display, accent clicks, and time signatures.
Developer Generators
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Pomodoro Focus Timer & Work Interval Tracker
Boost productivity with customizable Pomodoro intervals (25m work, 5m break) and audio notifications.
Developer Generators
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Cryptographic Random Number & Tabletop Dice Roller
Roll tabletop RPG dice (d4, d6, d8, d10, d12, d20, d100) or generate secure random integers.
Developer Generators
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Reading Time & Speaking Speed Estimator
Estimate article reading time and spoken presentation duration based on customizable WPM.
Developer Generators
Processed in your browser
Meta Tags & Open Graph Generator
Generate SEO meta tags, Open Graph, and Twitter Cards with real-time Google search and social card previews.
Developer Generators
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Speed of Sound in Air & Temperature Calculator
Calculate speed of sound across Celsius, Fahrenheit, and Kelvin with echo delay and lightning distance formulas.
General Developer Utilities
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Unix Timestamp & Epoch Converter
Convert Unix epoch timestamps to human-readable dates (UTC and local) and parse dates to timestamps with a live clock ticker.
Developer Generators
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Speech-to-Text Voice Dictation & Audio Transcriber
Real-time microphone speech-to-text voice recognition dictation with word count and text copy.
Developer Generators
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High-Precision Millisecond Stopwatch & Lap Timer
Precision millisecond stopwatch with split lap timing, fastest/slowest lap tracking, and export.
Developer Generators
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Subtitle SRT to WebVTT Converter with Timestamp Shifter
Convert SubRip (.srt) movie subtitles into HTML5 WebVTT (.vtt) format with millisecond sync time shifting.
Developer Generators
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Text-to-Speech Natural Voice Synthesizer
Read text aloud with natural voice pitch, speech rate controls, and multi-language support.
General Developer Utilities
Processed in your browser
CSS Minifier & Formatter
Minify, compress, or beautify CSS stylesheets online with color optimization, zero-unit cleanup, and live savings metrics.
General Developer Utilities
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HTML Minifier & Code Compressor
Minify and compress HTML markup by stripping comments, extra spaces, and redundant whitespace with live byte savings calculation.
Developer Generators
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Campaign UTM Builder & Link Tracker
Build Google Analytics 4 (GA4) trackable UTM campaign URLs with channel presets, parameter validation, and one-click copy.
General Developer Utilities
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Bandwidth & Download Time Calculator
Calculate download and upload transfer times for any file size across Gigabit fiber, broadband, 5G, and Starlink internet speeds.
General Developer Utilities
Processed in your browser
User-Agent String Parser & Client Inspector
Parse and decode browser User-Agent strings into browser, operating system, device, and engine metadata.
Developer Generators
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Fancy CSS Border Radius & Organic Blob Generator
Create fancy organic shapes, fluid blobs, and smooth rounded corners using 8-value advanced CSS border-radius syntax.
Developer Generators
Processed in your browser
CSS Clip-Path Maker & Polygon Shape Generator
Create complex CSS clip-path shapes and polygon cutouts with an interactive visual preview and instant CSS code output.
Developer Generators
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CSS Triangle Generator & Shape Builder
Generate pure CSS triangles using transparent borders or clip-path with customizable directions, sizes, and colors.
Developer Generators
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MAC Address Generator & OUI Formatter
Generate randomized MAC (EUI-48) hardware addresses with unicast/multicast and vendor OUI prefix options.
Developer Generators
Processed in your browser
PX to REM / EM Converter & Typography Calculator
Convert Pixels (px) to REM, EM, Points (pt), and Percentages (%) with customizable base font size and live CSS snippet generation.
General Developer Utilities
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JavaScript KeyCode, Event Key & Code Detector
Inspect JavaScript KeyboardEvent properties in real time, including event.key, event.code, keyCode, and modifier keys.
General Developer Utilities
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JavaScript String Obfuscator & Hex Encoder
Obfuscate strings and sensitive text into JavaScript Hex escapes, Unicode, charCode arrays, and Base64 eval wrappers.
General Developer Utilities
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IPv4 Subnet & CIDR Network Calculator
Calculate IPv4 subnets, CIDR blocks, usable IP host ranges, broadcast addresses, and netmasks with binary decomposition.
API & HTTP Tools
Processed in your browser
HTTP Status Code Directory & Header Lookup
Comprehensive searchable directory of all HTTP status codes (1xx-5xx) with RFC specifications, caching rules, and troubleshooting guidance.
Developer Generators
Processed in your browser
Docker Run to Docker Compose Converter
Convert docker run terminal commands into clean, production-ready docker-compose.yml files instantly with support for ports, volumes, environment variables, restart policies, and networks.
Regex Tools
Processed in your browser
RegEx Cheat Sheet & Syntax Reference
Comprehensive interactive regular expression cheat sheet with character classes, quantifiers, lookaheads, anchors, syntax explanations, and a real-time testing sandbox.
General Developer Utilities
Processed in your browser
Linux Chmod Permissions Calculator
Calculate Linux file permissions in octal (755, 644) and symbolic (rwxr-xr-x) format with interactive checkboxes and command generator.
API & HTTP Tools
Processed in your browser
CORS Headers Analyzer & Troubleshooter
Diagnose Cross-Origin Resource Sharing (CORS) preflight failures, validate allowed origins/methods, and generate copyable server configs.
API & HTTP Tools
Processed in your browser
cURL Command Builder Studio
Visual cURL command generator with HTTP methods, custom headers, bearer tokens, request body formatting, and CLI flags.
API & HTTP Tools
Processed in your browser
HTTP Security Headers Evaluator & Generator
Evaluate security posture and generate modern HTTP security response headers including CSP, HSTS, X-Frame-Options, and Permissions-Policy.
Database & SQL
Processed in your browser
SQL to TypeScript Interface Generator
Convert SQL CREATE TABLE DDL queries into strongly-typed TypeScript interfaces, types, and schemas for PostgreSQL, MySQL, and SQLite.
Developer Generators
Processed in your browser
CSS Flexbox Visual Playground & Layout Builder
Interact with CSS Flexbox properties in real time with visual alignment, wrapping, and code generation.
Web Encoding & Escaping
Processed in your browser
File to Base64 & Data URI Converter
Convert any local file (images, PDFs, audio, fonts, documents) to Base64 data URI format or decode Base64 strings back to downloadable binary files.
Developer Generators
Processed in your browser
CSS Grid Template Layout Builder
Build 2D responsive CSS Grid layouts with custom columns, fractional units, and grid gaps.
Markdown Tools
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Markdown to HTML Converter
Convert Markdown text into clean, semantic HTML markup with live side-by-side preview, GFM tables, syntax-ready code blocks, and standalone page export.
Developer Generators
Processed in your browser
HTML Table Data Markup Generator
Generate clean, accessible, semantic HTML5 table markup with custom headers, zebra rows, and border styles.
Developer Generators
Processed in your browser
SVG to JSX / React Component Converter
Convert raw SVG HTML markup into clean, production-ready React JSX and Next.js icon components.
General Developer Utilities
Processed in your browser
Bandwidth & File Transfer Time Estimator
Estimate download and upload durations for files, databases, and media across network speeds and connections.
Developer Generators
Processed in your browser
SVG to React JSX / TSX Component Converter
Convert raw SVG vector code into production-ready React JSX or TypeScript TSX components with camelCase attributes, currentColor replacement, and prop forwarding.
General Developer Utilities
Processed in your browser
DNS SPF, DKIM & DMARC Record Generator
Generate and validate email security DNS records: Sender Policy Framework (SPF), DKIM selectors, and DMARC enforcement policies.
JSON Tools
Processed in your browser
JSON to TypeScript Interface & Type Generator
Convert raw JSON into clean, strongly-typed TypeScript interfaces, type aliases, nested sub-models, and union types directly in your browser.
General Developer Utilities
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IPv6 Subnet & Prefix Calculator
Calculate IPv6 subnet prefix lengths, network ranges, total addresses, compressed/expanded notation, and reverse DNS nibble formats.
General Developer Utilities
Processed in your browser
HAR File Viewer & Waterfall Inspector
Inspect and visualize HTTP Archive (.har) files with interactive network waterfalls, latency breakdowns (TTFB, DNS, SSL), headers, and payload sizes.
General Developer Utilities
Processed in your browser
JWT RSA & ECDSA Key Pair Generator
Generate cryptographic RSA and ECDSA key pairs in PEM (PKCS#8 & SPKI) format client-side using the Web Crypto API.
General Developer Utilities
Processed in your browser
MAC Address OUI Lookup & Generator
Lookup MAC hardware vendor (OUI), validate formats (colon, hyphen, dot), and generate random valid unicast or multicast MAC addresses.
Developer Generators
Processed in your browser
HTML to React JSX / TSX Converter
Convert HTML markup into clean React JSX code with automatic className, htmlFor, self-closing tags, and inline style object transformations.
General Developer Utilities
Processed in your browser
MIME Type & File Extension Lookup Dictionary
Fast searchable dictionary mapping file extensions to MIME media types with Content-Type headers and web server configuration.
JSON Tools
Processed in your browser
Mock Data & Fake JSON Generator
Generate realistic mock JSON and CSV datasets for frontend prototyping with custom schema fields, record counts, and instant export.
General Developer Utilities
Processed in your browser
IPv4 Subnet Mask & Wildcard Calculator
Calculate IPv4 subnet masks, wildcard masks for Cisco ACLs, CIDR prefixes, host ranges, and broadcast IPs.
General Developer Utilities
Processed in your browser
Cron Expression Generator & Visual Scheduler
Visual cron schedule builder. Interactively configure minutes, hours, days, and weekdays with instant cron syntax, plain English explanations, and next execution times.
General Developer Utilities
Processed in your browser
Open Graph & Social Media Card Previewer
Preview how your website meta tags and Open Graph cards appear on X (Twitter), Facebook, LinkedIn, Discord, and Google with instant HTML meta tag generation.
JSON Tools
Processed in your browser
JSON Schema Generator
Convert sample JSON payloads into valid JSON Schema (Draft-07 & Draft 2020-12) with automatic type and format inference.
General Developer Utilities
Processed in your browser
User-Agent Generator & Random Header Maker
Generate modern, authentic User-Agent strings for Chrome, Firefox, Safari, Edge across Windows, macOS, Linux, iOS, and Android.
API & HTTP Tools
Processed in your browser
cURL to JavaScript Fetch & Axios Converter
Convert raw cURL commands into clean JavaScript Fetch, Axios, Node.js, and Python requests code instantly in your browser.
Developer Generators
Processed in your browser
JSON to Zod Schema Generator
Convert JSON payloads into TypeScript Zod validation schemas with automatic type inference, email/URL/datetime checks, and zero tracking.
General Developer Utilities
Processed in your browser
SVG to Data URI & CSS Background Converter
Convert raw SVG XML or files into URL-encoded SVG Data URIs, Base64 strings, and CSS background-image declarations.
Database & SQL
Processed in your browser
SQLite Database Explorer
View, explore, and query SQLite databases in your browser with WebAssembly (WASM). 100% client-side with zero server uploads.
General Developer Utilities
Processed in your browser
ZIP Archive Maker & Extractor
Create and extract ZIP archives directly in your browser. Compress multiple files into ZIP or unpack ZIP contents privately without server uploads.
Database & SQL
Processed in your browser
SQL INSERT to JSON Converter
Parse SQL INSERT INTO statements and convert database rows into clean, structured JSON arrays.
Developer Generators
Processed in your browser
Audio Frequency & Tone Generator (Web Audio)
Interactive browser synthesizer generating Sine, Square, Sawtooth, and Triangle waves (20Hz - 20,000Hz) with real-time waveform visualization.
Developer Generators
Processed in your browser
Dockerfile Generator & Preset Builder
Visual generator for production-ready Dockerfiles (Node.js, Python, Go, PHP, Rust, Static Nginx) with multi-stage builds and security best practices.
JSON Tools
Processed in your browser
JSON Keys & JSONPath Extractor
Traverse complex JSON structures to extract all unique property keys, JSONPath access strings, and data types.
Markdown Tools
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Markdown Table to CSV / TSV Converter
Convert GitHub Flavored Markdown tables into CSV or Tab-Separated Values (TSV) spreadsheets instantly.
General Developer Utilities
Processed in your browser
Audio Waveform Visualizer & Peak Inspector
Upload audio files (MP3, WAV, OGG) to render high-resolution amplitude waveforms and inspect duration, sample rate, and peak channels.
General Developer Utilities
Processed in your browser
IPv4 to IPv6 Address Converter
Convert IPv4 addresses into IPv4-Mapped IPv6, IPv4-Compatible, 6to4 prefix notation, and expanded 128-bit hexadecimal.
General Developer Utilities
Processed in your browser
NGINX Config Formatter & Beautifier
Format, indent, and beautify NGINX server configuration blocks and location directives client-side with syntax cleanups.
General Developer Utilities
Processed in your browser
TCP/UDP Port Lookup Directory & Protocol Guide
Interactive directory of standard networking ports (1-65535) with service names, protocols (TCP/UDP), and security notes.
General Developer Utilities
Processed in your browser
URL Parser, Inspector & Query Breakdown
Deconstruct any URL into protocol, origin, hostname, port, pathname, search query parameters table, and hash fragment.
Web Encoding & Escaping
Processed in your browser
SVG to Base64 & Data URI Converter
Convert SVG markup or vector files into base64 data URIs for CSS background-image and HTML img tags.
Developer Generators
Processed in your browser
HTML Table Generator & Styler
Create clean, responsive, and accessible HTML tables with custom rows, columns, headers, and CSS styling presets.
JWT & Tokens
Processed in your browser
JWT Payload Inspector & Expiry Checker
Decode JSON Web Tokens, inspect header algorithms, view token claims, and check expiry status without leaking keys.
Markdown Tools
Processed in your browser
Markdown Checklist & Task Builder
Build interactive GitHub Flavored Markdown task lists and checklists with drag-and-drop and one-click copy.
General Developer Utilities
Processed in your browser
Cron Next Runs Calculator
Preview the upcoming 10 execution dates and times for any standard cron expression in local and UTC time.
General Developer Utilities
Processed in your browser
Unix File Permission Decoder
Decode octal chmod values (0755, 0644) and symbolic strings (rwxr-xr-x) into plain English permissions breakdown.
API & HTTP Tools
Processed in your browser
cURL JSON Body & Header Extractor
Extract JSON request payloads, headers, and query parameters from raw cURL command lines.
Database & SQL
Processed in your browser
SQL CREATE TABLE Query Builder
Visual builder to design database tables, columns, primary keys, and constraints with instant DDL generation.
General Developer Utilities
Processed in your browser
CSS Clamp Fluid Typography Calculator
Calculate fluid clamp() formulas for responsive font sizes and spacing across min and max viewport widths.
Regex Tools
Processed in your browser
Natural Language to Regex AI
Convert plain English prompts and requirements into tested regular expressions 100% in-browser with live matching workbench.
Database & SQL
Processed in your browser
Database Schema & ER Diagram Designer
Design relational database schemas visually or parse SQL DDL statements into interactive Entity Relationship (ER) diagrams.
Developer Generators
Processed in your browser
Interactive Diagram & Flowchart Studio
Create, edit, and visualize flowcharts, sequence diagrams, and architecture charts in real-time with instant SVG and PNG export.
General Developer Utilities
Processed in your browser
SSL Certificate & CSR Decoder
Decode and inspect X.509 SSL/TLS certificates and Certificate Signing Requests (CSR) entirely in your browser with validity timers and SAN details.
API & HTTP Tools
Processed in your browser
GraphQL Query Validator & Formatter
Validate, beautify, and test GraphQL queries and mutations in your browser with real-time syntax checking, operation analysis, and live endpoint execution.
API & HTTP Tools
Processed in your browser
WebSocket & SSE Client Tester
Test WebSockets (WS/WSS) and Server-Sent Events (SSE) directly in your browser with real-time log inspector, message sender, and telemetry.
General Developer Utilities
Processed in your browser
DNS-over-HTTPS (DoH) Lookup
Perform encrypted DNS lookups directly from your browser via Cloudflare, Google, and Quad9 DoH resolvers for A, AAAA, MX, TXT, and CNAME records.
General Developer Utilities
Processed in your browser
Crontab Expression Builder & Explainer
Build, edit, and explain standard 5-part cron schedule expressions visually with human-readable English translations and upcoming execution schedules.
Developer Generators
Processed in your browser
RegEx Tester & Pattern Cheatsheet
Test regular expressions in real-time with live text highlighting, capture group extraction, flag modifiers, and a built-in regex pattern cheatsheet.
General Developer Utilities
Processed in your browser
IPv4 CIDR Subnet Calculator
Calculate IPv4 CIDR blocks, subnet masks, wildcard masks, usable host ranges, broadcast addresses, and binary bit breakdowns instantly.
Developer Generators
Processed in your browser
JSON to TypeScript Interface & Type Generator
Convert raw JSON objects and arrays into clean, strongly typed TypeScript interface and type declarations with recursive type extraction and optional properties.
Database & SQL
Processed in your browser
SQL Query Formatter & Beautifier
Format, indent, and beautify complex SQL queries client-side with keyword capitalization, custom indentation, minification, and dialect support.
JWT & Tokens
Processed in your browser
JWT Generator, Signer & Token Builder
Generate, sign, and build cryptographic JSON Web Tokens (JWT) in-browser with HMAC-SHA256, custom claims, expiration presets, and real-time signature verification.
Markdown Tools
Processed in your browser
HTML Table to Markdown Converter
Convert HTML <table> elements or pasted rich-text spreadsheets into clean GitHub Flavored Markdown (GFM) pipe tables with alignment indicators.
Structured Data Tools
Two-way tabular conversion tools between CSV and JSON with automatic delimiter and type detection.
Data Converters
Processed in your browser
CSON (CoffeeScript Object Notation) to JSON Converter
Parse indentation-based CSON configuration files into standard JSON with quote-free keys and multiline strings.
Data Converters
Processed in your browser
CSV to SQLite Table Schema (DDL) & Importer
Infer column types (INTEGER, REAL, TEXT) from CSV headers and data rows to generate SQLite CREATE TABLE statements.
Data Converters
Processed in your browser
EDN (Extensible Data Notation) to JSON Converter
Translate Clojure Extensible Data Notation (EDN) data structures (keywords :key, vectors [], maps {}) into clean JSON.
Data Converters
Processed in your browser
GeoJSON to Well-Known Text (WKT) GIS Converter
Convert GIS geometries between GeoJSON (Point, LineString, Polygon) and OGC Well-Known Text (WKT) format.
Data Converters
Processed in your browser
HCL (HashiCorp Configuration Language) to JSON Parser
Convert basic Terraform and HCL configuration blocks (attributes, blocks, lists) into clean structured JSON format.
Data Converters
Processed in your browser
JSON Diff & Semantic Tree Comparator
Compare two JSON payloads semantically, highlighting added keys, deleted fields, modified types, and array differences.
Data Converters
Processed in your browser
JSON Patch (RFC 6902) Operations Builder
Build standardized RFC 6902 JSON Patch arrays with add, remove, replace, move, copy, and test operational statements.
Data Converters
Processed in your browser
JSON Pointer (RFC 6901) Path Evaluator
Query and extract nested JSON values using RFC 6901 slash syntax (/store/books/0/title) and escaped tilde (~0, ~1) tokens.
Data Converters
Processed in your browser
XML XPath 1.0 Query Selector & Node Evaluator
Execute XPath expressions (e.g. //book/title/text()) against XML documents with instant matched node extraction in-browser.
YAML & Config Converters
Processed in your browser
YAML Anchor (&), Alias (*) & Merge Key Expander
Resolve and flatten YAML anchors (&), references (*), and merge keys (<<) into standalone unrolled JSON and clean YAML.
Data Converters
Processed in your browser
CSV to JSON
Convert CSV spreadsheet text to structured JSON arrays with delimiter selection and type parsing.
Data Converters
Processed in your browser
JSON to CSV
Convert JSON arrays of objects into structured CSV tabular format with customizable delimiters.
Data Converters
Processed in your browser
CSV to GitHub Markdown Table Converter
Convert CSV or TSV spreadsheets into clean GitHub-Flavored Markdown tables.
Data Converters
Processed in your browser
JSON to GraphQL Schema Generator
Infer GraphQL types, fields, and queries from JSON sample data in your browser.
Data Converters
Processed in your browser
JSON to TOML Converter
Convert JSON data structures to clean, human-readable TOML configuration format.
Data Converters
Processed in your browser
JSON to TypeScript Interface Generator
Infer TypeScript interfaces, type aliases, and optional fields from sample JSON data.
Data Converters
Processed in your browser
JSON to YAML Formatter & Converter
Format JSON object payloads into clean, human-readable indented YAML.
Data Converters
Processed in your browser
TOML to JSON Converter
Parse TOML configuration files into structured JSON with formatted tree output.
YAML & Config Converters
Processed in your browser
YAML to JSON / JSON to YAML Converter
Convert YAML configuration files to JSON and JSON data to YAML with real-time bidirectional translation.
Data Converters
Processed in your browser
CSV to SQL Converter
Convert CSV spreadsheets into SQL CREATE TABLE and batch INSERT statements across MySQL, PostgreSQL, and SQLite.
Data Converters
Processed in your browser
SQL to JSON Converter
Convert SQL INSERT INTO queries into structured JSON objects and arrays in real time.
Data Converters
Processed in your browser
XML to JSON Converter & Tree Parser
Convert XML documents into clean JSON objects and arrays with attribute preservation and indentation formatting.
YAML & Config Converters
Processed in your browser
CSV to YAML Converter
Convert CSV and TSV tabular data into clean, structured YAML files with automatic delimiter detection and type inference.
Data Converters
Processed in your browser
TSV to JSON & Array Converter
Convert Tab-Separated Values (TSV) copied from Excel or spreadsheets into formatted JSON objects, arrays, and maps.
Data Converters
Processed in your browser
CSV Column Extractor & Filter
Upload or paste CSV data, pick specific columns to extract or remove with interactive toggles, and export clean CSVs.
Data Converters
Processed in your browser
Dotenv (.env) to JSON Converter
Convert .env configuration environment variables to clean JSON objects and vice versa with automatic type parsing.
YAML & Config Converters
Processed in your browser
YAML Validator & Syntax Linter
Validate YAML syntax in real-time client-side, inspect structural indentation, and pinpoint line-by-line syntax errors.
Data Converters
Processed in your browser
CSV Delimiter Converter
Swap CSV delimiters between commas, semicolons, tabs, and pipes with full CSV quote escaping.
Data Converters
Processed in your browser
JSON to XML Converter
Convert JSON objects and arrays into structured, indented XML documents with customizable root elements.
YAML & Config Converters
Processed in your browser
YAML to JSON Converter
Parse YAML documents and convert them into clean, formatted JSON trees entirely in your browser.
Data Converters
Processed in your browser
HTML Table to JSON Converter
Parse HTML table markup and convert rows and columns into formatted JSON arrays of objects.
Data Converters
Processed in your browser
JSON Array Sorter & Key Reorderer
Sort arrays of JSON objects by any chosen key and recursively alphabetize object keys in-browser.
Data Converters
Processed in your browser
TSV to CSV Spreadsheet Converter
Convert tab-separated values into comma-separated RFC 4180 CSV with quotation escaping.
Data Converters
Processed in your browser
Columnar JSON & Parquet Data Explorer
Parse deeply nested JSON arrays into flattened tabular records with inferred schemas, interactive search, and SQL export.
Data Converters
Processed in your browser
Tabular Data Cleaner & Deduplication Studio
Clean messy tabular CSV/TSV data, remove duplicate records, trim whitespace, and sanitize columns in your browser.
Data Converters
Processed in your browser
Spreadsheet CSV & Excel Grid Editor
View, edit, and manipulate CSV and Excel data tables in an interactive grid with formulas and instant export.
Data Converters
Processed in your browser
YAML to .ENV Key-Value Converter
Convert complex nested YAML configuration trees into clean, flattened, uppercase .ENV environment variable declarations with customizable key separators.
Data Converters
Processed in your browser
XML to JSON Converter
Convert arbitrary XML files and strings into clean, structured JSON format with attribute preservation, repeated tag grouping, and indentation controls.
Encoding, Hashing & Cryptography
Client-side Web Crypto and encoding utilities: Base64, URL encoding, HTML entities, SHA-256 hashes, and random password generator.
Encoding & Decoding
Processed in your browser
Base64 Encoder / Decoder
Encode and decode text and binary files to and from Base64 format with URL-safe encoding support.
Encoding & Decoding
Processed in your browser
HTML Entity Encoder / Decoder
Escape and unescape HTML/XML entities to protect against XSS and display raw code safely.
Encoding & Decoding
Processed in your browser
URL Encoder / Decoder
Encode and decode URLs and query string components with percent-encoding conforming to RFC 3986.
Security Generators
Processed in your browser
Password Generator
Generate cryptographically strong random passwords and passphrases with custom length and character sets.
Hashing
Processed in your browser
SHA-256 Generator
Generate cryptographic SHA-256 hashes instantly in your browser via native Web Crypto APIs.
Encoding & Decoding
Processed in your browser
Base58 Encoder & Decoder
Encode and decode Bitcoin and IPFS Base58 strings without ambiguous characters.
Encoding & Decoding
Processed in your browser
Caesar Cipher & ROT13/ROT47 Rotator
Interactive letter rotation cipher with dynamic shift slider (1–25) and ROT13/ROT47 presets.
Security Generators
Processed in your browser
Password Strength & Entropy Analyzer
Analyze password security, calculate bit entropy, and estimate brute-force crack times locally in your browser.
Security Generators
Processed in your browser
Random String & Token Generator
Generate cryptographically secure random strings, bulk API keys, and custom tokens using Web Crypto.
Hashing
Processed in your browser
MD5 Hash Generator & Verifier
Generate 128-bit MD5 hashes from text strings or uploaded files with instant hash verification and HMAC support.
Encoding & Decoding
Processed in your browser
URL-Safe Base64 Encoder / Decoder (RFC 4648)
Encode and decode URL-safe Base64 strings with RFC 4648 compliance and automatic padding handling.
Security Generators
Processed in your browser
PBKDF2 Key Derivation Function Simulator
Derive cryptographically strong symmetric keys from passwords using PBKDF2 with salt and iteration counts.
Security Generators
Processed in your browser
BIP-39 Mnemonic Seed Phrase Generator
Generate cryptographically random 12-word or 24-word BIP-39 mnemonic seed phrases with checksum validation.
Security Generators
Processed in your browser
ECDSA Keypair Generator (P-256 / P-384)
Generate ECDSA cryptographic public and private keypairs in PEM and JWK formats directly in your browser.
Security Generators
Processed in your browser
Ed25519 Keypair Generator
Fast, secure in-browser Ed25519 signature keypair generator with hex, base64, and PEM representations.
Security Generators
Processed in your browser
Shamir's Secret Sharing Calculator (k-of-n)
Split a confidential secret into k-of-n threshold shares and mathematically reconstruct it without centralized keys.
Security Generators
Processed in your browser
TOTP 2FA Authenticator Code Generator & Verifier
Generate and verify standard RFC 6238 Time-based One-Time Password (TOTP) codes with 30s countdown.
Security Generators
Processed in your browser
RFC 4122 UUID Generator (v1, v3, v4, v5)
Generate standard RFC 4122 UUIDs: v1 (time-based), v3 (MD5), v4 (cryptographic random), and v5 (SHA-1).
Security Generators
Processed in your browser
Credit Card Validator & Luhn Checker
Validate credit card numbers using the MOD 10 Luhn algorithm with instant card brand detection and QA test card generation.
Hashing
Processed in your browser
HMAC-SHA Message Authenticator (256/512/1)
Compute cryptographic Hash-based Message Authentication Codes (HMAC-SHA256, HMAC-SHA512, HMAC-SHA1) in Hex and Base64.
Hashing
Processed in your browser
X.509 SSL Certificate Fingerprint Hasher
Extract and compute SHA-256 and SHA-1 cryptographic fingerprints from PEM certificates.
Encoding & Decoding
Processed in your browser
Base32 Encoder & Decoder (RFC 4648)
Encode text to RFC 4648 Base32 strings and decode Base32 authentication secrets with padding options.
Encoding & Decoding
Processed in your browser
Text to Binary & Binary to Text Translator
Translate English text to 8-bit binary and decode binary code back to readable text with byte inspector.
Encoding & Decoding
Processed in your browser
HTML Entity Decoder & Encoder
Two-way decoder for named (", &), decimal ('), and hex HTML entities into readable UTF-8 text and symbols.
Security Generators
Processed in your browser
.htpasswd Generator & Basic Auth Builder
Generate Apache and Nginx .htpasswd basic authentication entries with Bcrypt, MD5, and SHA-1 encryption client-side.
Hashing
Processed in your browser
File Hash Verifier & Checksum Comparator
Drag and drop any file or paste text to compute SHA-256, SHA-512, and MD5 hashes simultaneously, comparing against an expected checksum.
Hashing
Processed in your browser
SHA-512 Hash Generator
Generate cryptographic 512-bit SHA-512 hashes using the high-performance Web Crypto API in your browser.
Security Generators
Processed in your browser
Password Entropy & Crack Time Calculator
Calculate Shannon bit entropy and estimated brute-force crack times against modern computing clusters.
Security Generators
Processed in your browser
UUID v7 (Time-Ordered) Generator
Generate modern RFC 9562 time-ordered UUID v7 identifiers with millisecond precision timestamp inspection.
Security Generators
Processed in your browser
Digital Signature Signer & Verifier
Sign payload messages and verify cryptographic digital signatures using Web Crypto HMAC (SHA-256/384/512) and public keys 100% client-side.
Security Generators
Processed in your browser
Encrypted Secret & Key Vault Generator
Create end-to-end encrypted secret notes, credentials, and API key vaults using client-side PBKDF2 and AES-256-GCM encryption.
Security Generators
Processed in your browser
Diceware Secure Passphrase Generator
Generate memorable, high-entropy Diceware multi-word passphrases in-browser using cryptographically secure random values with entropy bit calculators.
PDF & Document Tools
Fast, private browser-based PDF utilities: merge, split, convert, rotate, and extract pages with zero server upload.
PDF Converters
Processed in your browser
PDF Grayscale & Monochrome Simulator
Preview and convert colorful PDF document artwork and pages to ink-saving grayscale and high-contrast monochrome black & white.
PDF Organization
Processed in your browser
PDF Encryption & Permissions Checker
Inspect PDF document security flags, encryption algorithms, printing permissions, copy/paste rights, and form editing constraints.
PDF Organization
Processed in your browser
PDF Margin & Crop Box Calculator
Calculate and visualize PDF page MediaBox, CropBox, BleedBox, and TrimBox coordinates across points, millimeters, and inches for print binding.
PDF Organization
Processed in your browser
PDF Page Counter & Metadata Inspector
Inspect PDF page counts, document version, author, title, creation timestamps, and encryption flags directly in your browser without uploading.
PDF Organization
Processed in your browser
PDF Page Number Adder & Stamper
Configure header and footer page numbering for PDF documents with custom formats, positioning, font size, margins, and start page offsets.
PDF Organization
Processed in your browser
PDF Page Reorder & Organizer
Visual drag-and-drop page order simulation tool to rearrange, duplicate, or delete specific pages and export a reorder sequence manifest.
PDF Organization
Processed in your browser
PDF Cover & Thumbnail Extractor
Render and extract first-page cover artwork and page thumbnails from PDF documents into high-resolution PNG, WebP, or JPEG images.
PDF Text & Content
Processed in your browser
DOCX Word & Character Counter
Unpack and inspect Microsoft Word (.docx) documents in-browser to accurately count words, characters, paragraphs, and reading time.
PDF Text & Content
Processed in your browser
RTF to Plain Text Converter
Convert Rich Text Format (RTF) documents to clean, unformatted plain text by stripping control words and decoding Unicode escape codes.
PDF Converters
Processed in your browser
Image to PDF Converter
Convert JPG, PNG, and WebP images into a single organized PDF document. Reorder pages and customize margins client-side.
Merge & Combine
Processed in your browser
Merge PDF Files
Combine multiple PDF documents into a single file in seconds. Reorder pages and files client-side with zero data upload.
PDF Organization
Processed in your browser
Rotate PDF Pages
Rotate PDF pages clockwise (90°), upside down (180°), or counter-clockwise (270°). Save and download client-side.
Split & Extract
Processed in your browser
Split PDF & Extract Pages
Extract specific pages or page ranges from a PDF document. Split into a new PDF client-side with zero data upload.
PDF Text & Content
Processed in your browser
PDF Text Extractor
Extract all readable text from any PDF document page by page. Copy or download as plain text (.txt) without server uploads.
PDF Converters
Processed in your browser
PDF Grayscale & Monochrome Ink-Saver Converter
Convert full-color PDF documents into clean grayscale or 1-bit high-contrast black-and-white to save ink and toner.
PDF Converters
Processed in your browser
PDF to Single Vertical Long Image Stitcher
Render and stitch multi-page PDF documents vertically into one single continuous high-resolution PNG or JPEG image.
PDF Organization
Processed in your browser
PDF Blank Page Detector & Scrubber
Scan multi-page documents to automatically identify and remove blank pages left over from duplex scanner runs.
PDF Organization
Processed in your browser
PDF N-Up Multiple Pages Per Sheet Imposer
Impose 2, 4, or 8 document pages onto a single printed sheet to create compact handouts, cheat-sheets, and pocket reference guides.
PDF Organization
Processed in your browser
PDF Page Number & Header/Footer Stamper
Stamp sequential page numbers ('Page X of Y'), document confidentiality notices, or custom header/footer stamps onto PDF pages.
PDF Organization
Processed in your browser
PDF Page Rotator & Sequence Reorder Helper
Rotate individual PDF pages 90°, 180°, or 270° clockwise, reorder page sequence, and export a corrected PDF in-browser.
PDF Organization
Processed in your browser
PDF Password Encryption & Permission Helper
Secure PDF documents with user opening passwords, owner master passwords, and granular document permission controls.
PDF Text & Content
Processed in your browser
PDF Invoice & Receipt Data Field Extractor
Parse digital invoice PDFs to extract vendor names, invoice numbers, billing dates, line items, and totals into structured CSV and JSON.
PDF Text & Content
Processed in your browser
PDF Metadata Inspector & Privacy Sanitizer
Inspect hidden document metadata (author name, operating system, PDF producer, creation date) and scrub metadata headers before sharing.
PDF Text & Content
Processed in your browser
PDF Text & Word Frequency Keyword Analyzer
Extract text from PDF documents to calculate total word count, reading time, keyword density, and lexical vocabulary diversity.
PDF Converters
Processed in your browser
Base64 to PDF Viewer & Downloader
Paste base64 PDF strings or data URIs to preview in an in-browser PDF canvas and download the document.
PDF Converters
Processed in your browser
Markdown to Printable Document Formatter
Format and preview GitHub Flavored Markdown documents with print-optimized styles for PDF export.
PDF Organization
Processed in your browser
PDF Watermark Stamper
Stamp text watermarks (CONFIDENTIAL, DRAFT, custom) onto PDF pages with custom angle, opacity, color, and page ranges.
PDF Converters
Processed in your browser
PDF Color Space (CMYK vs RGB) Preflight Inspector
Detect whether PDF pages contain RGB, CMYK, DeviceGray, or Spot color elements to prevent commercial printing color shifts.
PDF Organization
Processed in your browser
PDF Bookmarks & Hierarchical Outline Tree Viewer
Inspect and visualize the nested Table of Contents document outline tree and destination page targets in PDF files.
PDF Organization
Processed in your browser
PDF Embedded Image Resolution & DPI Preflight Checker
Estimate effective Dots Per Inch (DPI) of raster images embedded in PDF pages to prevent pixelated commercial prints.
PDF Organization
Processed in your browser
PDF Font Embedding & Subset Integrity Inspector
Inspect embedded font descriptors (TrueType, Type 1, CFF, OpenType) to ensure subsets are embedded without missing glyphs.
PDF Organization
Processed in your browser
PDF Form (AcroForm) Field Names & Type Inspector
Inspect interactive PDF forms to discover all AcroForm field names, types (text, checkbox, radio), and default values.
PDF Organization
Processed in your browser
PDF Fast Web View (Linearization) Byte-Serving Checker
Verify whether a PDF document is linearized for progressive byte-serving and instant first-page streaming in web browsers.
PDF Organization
Processed in your browser
PDF Page Boundary Boxes (MediaBox & CropBox) Checker
Inspect and measure PDF MediaBox, CropBox, BleedBox, TrimBox, and ArtBox point dimensions and millimeter sizes for prepress.
PDF Organization
Processed in your browser
PDF Page Labeling & Logical Roman Numeral Mapper
Map physical PDF page sequence indices to logical document numbers (e.g. Roman i, ii, iii for preface, 1..N for chapters).
PDF Organization
Processed in your browser
PDF/A Archival Conformance (ISO 19005) Header Checker
Verify XMP metadata packet headers for PDF/A-1b, PDF/A-2b, or PDF/A-3 archival compliance markers and color profile declarations.
PDF Text & Content
Processed in your browser
PDF Text Lexical Frequency & Word Cloud Builder
Extract raw body text from PDF files and calculate top recurring lexical keywords and occurrence frequencies.
PDF Converters
Processed in your browser
CSV to PDF Table Generator
Convert raw CSV spreadsheets into clean, print-ready paginated PDF tables with customizable fonts, header styling, and zebra striping.
Color & Design Tools
Palette generators, visual color picker, CSS gradient builders, and WCAG 2.1 accessibility contrast checker.
CSS & Modern UI Generators
Processed in your browser
CSS Neon Glow & Multi-Layer Text Shadow Styler
Multi-layer neon text effects with animated glow presets and customizable shadow radii.
Contrast & Accessibility
Processed in your browser
Color Contrast Checker
Calculate WCAG 2.1 compliance contrast ratio between foreground text and background colors.
CSS & Modern UI Generators
Processed in your browser
3D CSS Perspective & Transform Builder
Interactive 3D CSS transform playground with perspective, rotateX, rotateY, and translateZ.
Generators
Processed in your browser
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes from any base color.
CSS & Modern UI Generators
Processed in your browser
CSS Ribbon & Corner Banner Generator
Generate modern corner badges, folded ribbons, and product ribbons in pure CSS.
Generators
Processed in your browser
CSS Gradient Generator
Interactive CSS linear and radial gradient builder with color stops, direction control, and CSS export.
Generators
Processed in your browser
CSS Mesh & Multi-Point Radial Gradient Generator
Generate organic mesh gradients and multi-point radial background textures in pure CSS.
Color Pickers
Processed in your browser
Color Picker & Converter
Visual color picker converting in real-time between HEX, RGB, HSL, and CMYK formats.
Generators
Processed in your browser
Organic SVG Smooth Blob Generator
Generate organic, fluid SVG vector blobs with randomness and complexity controls.
CSS & Modern UI Generators
Processed in your browser
CSS Box Shadow Generator
Interactive visual generator for modern CSS box shadows. Customize offset, blur, spread, color opacity, and inset layers with live preview.
CSS & Modern UI Generators
Processed in your browser
Glassmorphism CSS Generator
Generate modern frosted-glass UI effects with backdrop-filter blur, opacity, border, and reflection controls.
CSS & Modern UI Generators
Processed in your browser
CSS Mesh & Aurora Gradient Generator
Create modern CSS mesh and aurora gradients with customizable color points, blur, and live CSS code copy.
Contrast & Accessibility
Processed in your browser
Palette Contrast Matrix Checker
Evaluate WCAG AA and AAA color contrast ratios across an entire palette simultaneously in an N×N grid.
CSS & Modern UI Generators
Processed in your browser
CSS Border Radius Organic Blob Generator
Generate organic, fluid, morphing SVG-like blobs using 8-value CSS border-radius syntax.
CSS & Modern UI Generators
Processed in your browser
CSS Box Shadow Multi-Layer Generator
Layer multiple realistic box shadows with fine control over blur, spread, offsets, and inset depth.
CSS & Modern UI Generators
Processed in your browser
CSS Card Component Generator
Design responsive, modern UI cards with customizable shadows, borders, badges, and button actions with instant HTML and CSS export.
CSS & Modern UI Generators
Processed in your browser
CSS cubic-bezier() Easing Visualizer
Design custom CSS transition timing functions with interactive bezier curve handles and real-time motion playback.
CSS & Modern UI Generators
Processed in your browser
CSS Fluid Typography clamp() Calculator
Calculate perfect responsive fluid typography using CSS clamp() formulas based on viewport boundaries.
CSS & Modern UI Generators
Processed in your browser
CSS Loader & Spinner Animation Generator
Generate lightweight, zero-dependency pure CSS loading spinners, pulsating rings, dots, and wave indicators.
CSS & Modern UI Generators
Processed in your browser
CSS Text Shadow & Neon Glow Generator
Create multi-layer CSS text shadow effects, vibrant neon glows, and retro 3D text typography.
Generators
Processed in your browser
SVG Wave & Organic Shape Divider Generator
Generate customizable, responsive SVG wave dividers, organic curved section transitions, and gradients for modern web design with one-click SVG and CSS export.
CSS & Modern UI Generators
Processed in your browser
CSS Triangle & Tooltip Arrow Generator
Generate lightweight CSS triangles, pointers, and speech bubble arrows using border tricks.
Generators
Processed in your browser
CSS Conic Gradient & Color Wheel Generator
Generate vibrant CSS conic gradients, pie charts, and angular color wheels with customizable stops and angle offsets.
Generators
Processed in your browser
CSS Isometric Grid & Perspective Generator
Generate interactive 2.5D isometric grids, perspective cubes, and game layouts with CSS 3D transforms.
Generators
Processed in your browser
SVG Path Visualizer & Optimizer
Visualize, inspect bounding boxes, measure path length, and optimize SVG path d strings directly in your browser.
CSS & Modern UI Generators
Processed in your browser
CSS Flexbox Playground & Code Generator
Visual interactive CSS flexbox builder with controls for direction, alignment, wrap, gap, and item sizing with live preview and clean CSS export.
Generators
Processed in your browser
SVG Background Pattern & Texture Generator
Generate customizable repeating seamless SVG geometric patterns (dots, grids, stripes, chevrons, hexagons) with one-click SVG and CSS background data URI export.
CSS & Modern UI Generators
Processed in your browser
CSS Grid Layout Generator & Visual Builder
Interactive visual CSS Grid layout generator. Adjust columns, rows, gaps, alignment, and child span areas with instant CSS & HTML code generation.
Generators
Processed in your browser
Color Shades & Tint Scale Generator
Generate full 50 to 950 color shade and tint scales from any hex color with WCAG contrast ratios, Tailwind CSS theme config, and CSS variables export.
CSS & Modern UI Generators
Processed in your browser
CSS Keyframes Animation Generator
Visual timeline animator for CSS keyframes. Customize transforms, opacity, easing curves, and playback with live interactive preview and CSS code generation.
Contrast & Accessibility
Processed in your browser
Color Blindness & Accessibility Simulator
Simulate 8 color vision deficiencies (Protanopia, Deuteranopia, Tritanopia, Achromatopsia) on hex colors and images in real time.
CSS & Modern UI Generators
Processed in your browser
CSS Neumorphism & Soft UI Generator
Generate soft UI neumorphic box-shadows with customizable light angles, distance, blur, and shape profiles (flat, concave, convex, pressed).
CSS & Modern UI Generators
Processed in your browser
CSS Glassmorphism & Frosted Glass Generator
Generate modern frosted glass and glassmorphism CSS with customizable blur, opacity, tint color, border glow, and backdrop-filter.
Generators
Processed in your browser
CSS Glass Card Builder
Design modern frosted glassmorphic UI cards with real-time blur, border glow, shadow, and dark mode preview.
Generators
Processed in your browser
CSS Gradient Text Generator
Generate modern CSS background-clip gradient text styles with interactive presets and cross-browser fallbacks.
Color Pickers
Processed in your browser
Hex Alpha & Opacity Calculator
Convert hex colors with opacity percentages into 8-digit #RRGGBBAA hex codes and CSS rgba() strings.
CSS & Modern UI Generators
Processed in your browser
CSS Box Shadow Presets & Customizer
Explore curated modern CSS box shadows with live preview, intensity sliders, and one-click CSS copy.
CSS & Modern UI Generators
Processed in your browser
Custom CSS Scrollbar Styler
Design custom scrollbars with scrollbar-color, scrollbar-width, and webkit scrollbar pseudo-elements.
Color Pickers
Processed in your browser
SVG Color & Stroke Styler
Recolor SVG vectors, tweak fill and stroke palettes, modify stroke widths, and export refreshed vector markup.
Generators
Processed in your browser
SVG Path Visualizer & Curve Editor
Interactively visualize, inspect, tweak, and transform SVG path d-attribute curve commands and waypoints in real time.
Contrast & Accessibility
Processed in your browser
Color Palette Extractor from Image
Extract dominant colors and cohesive color schemes from uploaded photos and graphics.
Contrast & Accessibility
Processed in your browser
Color Temperature (Kelvin) to RGB Converter
Convert color temperature in Kelvin (1000K to 12000K) to sRGB, Hex, and daylight equivalents.
Contrast & Accessibility
Processed in your browser
APCA & WCAG Contrast Ratio Checker
Test text and background contrast against both WCAG 2.1 AA/AAA and modern APCA standards.
CSS & Modern UI Generators
Processed in your browser
Fancy 8-Point Border-Radius Generator
Create organic fluid blob shapes with 8-value CSS border-radius syntax.
CSS & Modern UI Generators
Processed in your browser
CSS Clip-Path Polygon Shape Generator
Visual interactive polygon, circle, and chevron clip-path shape maker with CSS export.
CSS & Modern UI Generators
Processed in your browser
CSS Box Shadow Generator
Design sleek, modern, multi-layered CSS box shadows with live interactive preview, elevation presets, inset toggles, and instant CSS / Tailwind CSS export.
Contrast & Accessibility
Processed in your browser
WCAG Color Contrast Checker
Calculate foreground and background color contrast ratios in real-time according to W3C WCAG 2.1 standards for AA and AAA compliance across normal text, large text, and UI components.
CSS & Modern UI Generators
Processed in your browser
CSS Clip-Path Shapes & Geometry Generator
Design modern geometric CSS clip-path shapes, badges, polygons, and ribbons with live interactive previews, custom point editors, and CSS / Tailwind code exports.
CSS & Modern UI Generators
Processed in your browser
CSS Button Styler & Generator
Design modern, responsive CSS buttons visually with hover effects, click animations, gradients, glassmorphism, shadows, and instant CSS / Tailwind CSS export.
Image Tools
HTML5 Canvas client-side image processing: resize, crop, compress, convert formats, and inspect/strip EXIF metadata.
Image Manipulation
Processed in your browser
Image Compressor
Compress JPEG and WebP images with adjustable quality sliders and live byte size comparison.
Image Manipulation
Processed in your browser
Image Cropper
Crop photos and images interactively with preset aspect ratios (1:1, 16:9, 4:3, custom).
Image Manipulation
Processed in your browser
Image Format Converter
Convert image formats between PNG, JPEG, and modern WebP entirely in your browser.
Image Manipulation
Processed in your browser
Image Resizer
Resize PNG, JPEG, and WebP images by width, height, or percentage with aspect ratio lock.
Image Metadata
Processed in your browser
EXIF Viewer / Remover
Inspect photo metadata (camera, GPS, timestamp) and strip EXIF tags to preserve privacy before sharing.
Image Manipulation
Processed in your browser
Base64 Image Converter
Convert images to Base64 data URIs, HTML img tags, or CSS snippets, or decode Base64 strings back to downloadable image files.
Image Manipulation
Processed in your browser
SVG to PNG Converter (High Resolution)
Convert SVG files and raw code into high-resolution PNG, WebP, or JPEG images with custom scaling and background transparency.
Image Manipulation
Processed in your browser
Image Color Inverter & Negative Filter
Invert image colors to create negative photos, apply sepia, grayscale, and solarize effects directly in your browser with before/after comparison.
Image Manipulation
Processed in your browser
SVG Optimizer & Vector Code Cleaner
Clean and compress SVG vector markup by stripping editor metadata, comments, unused namespaces, and redundant attributes.
Image Manipulation
Processed in your browser
Image Aspect Ratio Resizer & Padding Calculator
Calculate proportional image dimensions, crop dimensions, and letterbox/pillarbox padding for standard aspect ratios (16:9, 4:3, 1:1, 9:16, 21:9) with client-side canvas scaling.
Image Manipulation
Processed in your browser
Image Privacy Masker & Gaussian Censor Tool
Censor sensitive information in photos (faces, license plates, credit card numbers, confidential text) with rectangular blur, pixelation, or blackout boxes.
Image Manipulation
Processed in your browser
Image Dithering & Newspaper Halftone Generator
Convert pictures into classic newspaper halftone dots, Floyd-Steinberg error-diffusion, or retro Bayer ordered dither patterns.
Image Manipulation
Processed in your browser
Image Duotone & Gradient Filter Editor
Apply modern Spotify-style two-tone color grading to photographs with shadow/highlight mapping and live visual canvas export.
Image Manipulation
Processed in your browser
Image Glitch & Chromatic Aberration Generator
Simulate cyberpunk RGB color channel displacement, VHS scanline noise, and digital slice glitch artifacts on any photograph.
Image Manipulation
Processed in your browser
Image Pixel Art & 8-Bit Retro Mosaic Generator
Convert regular photos into retro 8-bit, 16-bit pixel art or mosaic tile graphics with adjustable block pixelation and palette quantization.
Image Manipulation
Processed in your browser
Image Round Corners & Circle Cropper
Round image corners, create circular avatar crops, and apply customizable border outlines with instant transparent PNG export.
Image Manipulation
Processed in your browser
Image Split Tiles & Instagram Grid Slicer
Slice large photos into 3x3, 3x1, or 2x2 multi-tile image grids for Instagram carousel posts, website sprite sheets, or mosaic prints.
Image Manipulation
Processed in your browser
Transparent PNG Background & Color Replacer
Click any pixel in a photo or logo to make that color transparent or replace it with a new color based on adjustable tolerance.
Image Manipulation
Processed in your browser
Image Vignette & Radial Shadow Styler
Add dark or colored radial vignette edge feathering, cinematic lighting borders, and customizable lens falloff to photos.
Image Manipulation
Processed in your browser
Image Watermark & Copyright Logo Stamper
Stamp copyright text, photographer signatures, or transparent logo watermarks onto pictures with adjustable opacity, angle, and 9-point grid alignment.
Image Metadata
Processed in your browser
Image EXIF Metadata Viewer & Location Privacy Stripper
Inspect hidden EXIF camera metadata, GPS location coordinates, camera model, and export scrubbed photos for safe social media sharing.
Image Manipulation
Processed in your browser
Canvas Drawing & Digital Signature Pad
Draw digital signatures, sketches, and notes with smooth bezier curves and export as transparent PNG or SVG.
Image Manipulation
Processed in your browser
Sprite Sheet Packer & CSS Atlas Generator
Pack multiple images into an optimized single sprite sheet canvas with CSS classes and JSON coordinate maps.
Image Manipulation
Processed in your browser
STL 3D Model Viewer & Mesh Inspector
Preview, rotate, and inspect ASCII & Binary 3D STL meshes with triangle counts, bounding box dimensions, and volume estimates.
Image Manipulation
Processed in your browser
Audio Waveform Visualizer & Trimmer
Visualize audio waveforms, cut audio segments, and export trimmed WAV files 100% in-browser using Web Audio API.
Image Manipulation
Processed in your browser
Video to GIF Converter
Convert video clips into lightweight animated GIFs in your browser with custom FPS, resolution, and clip duration.
Image Manipulation
Processed in your browser
Video Trimmer & Cutter
Trim, cut, and extract video clips directly in your browser with zero uploads and instant download.
Image Manipulation
Processed in your browser
Screen & Window Video Recorder
Record full screen, application windows, or browser tabs with microphone audio directly in your browser with zero uploads.
Image Manipulation
Processed in your browser
Voice Memo & Microphone Audio Recorder
Record voice memos, podcasts, and microphone audio with real-time audio frequency visualizer and instant local download.
Image Manipulation
Processed in your browser
Webcam Video & Snapshot Recorder
Record high-definition video clips or capture instant photos from your webcam directly in your browser with zero server uploads.
Image Manipulation
Processed in your browser
Client-Side Image Resizer & Compressor
Resize and compress images directly in your browser using HTML5 Canvas. Supports aspect ratio locking, percentage scaling, format conversion (WebP, PNG, JPEG), and instant download.
Date & Time Tools
Convert Unix epoch timestamps to human-readable ISO 8601 dates and timezones.
Time Converters
Processed in your browser
Unix Timestamp Converter
Convert Unix seconds and milliseconds to UTC, ISO 8601, and local time zones, or convert dates back to epoch timestamps.
Date Calculations
Processed in your browser
Date Difference & Business Days Calculator
Calculate exact days between two dates, working business days, weeks, months, or add and subtract days to find future dates.
Timers & Stopwatches
Processed in your browser
Pomodoro Focus Timer
Clean, customizable Pomodoro focus timer with audio chimes, SVG progress ring, break cycles, and browser notifications.
Date Calculations
Processed in your browser
Flight Duration & Jet Lag Direction Calculator
Calculate flight duration across departure/arrival timezones and estimate jetlag recovery days.
Date Calculations
Processed in your browser
Moon Phase & Lunar Calendar Calculator
Calculate current moon phase, illumination percentage, and lunar age with visual moon graphic.
Date Calculations
Processed in your browser
Sunrise, Sunset & Solar Noon Astronomical Calculator
Calculate precise astronomical sunrise, sunset, solar noon, dawn, and dusk for any global coordinates.
Date Calculations
Processed in your browser
Multi-City Timezone Meeting Overlap Scheduler
Find optimal working hour meeting overlaps across multiple global timezones (NYC, London, Tokyo).
Time Converters
Processed in your browser
Astronomical Julian Day & MJD Converter
Convert calendar Gregorian dates into astronomical Julian Day Number (JDN) and Modified Julian Day (MJD).
Timers & Stopwatches
Processed in your browser
Online Stopwatch & Lap Timer
High-precision digital stopwatch with lap and split times, fastest/slowest lap tracking, and CSV export.
Date Calculations
Processed in your browser
Golden Hour & Blue Hour Photography Calculator
Calculate photography Golden Hour, Blue Hour, and solar twilight times (Civil, Nautical, Astronomical) for any date and coordinates.
Date Calculations
Processed in your browser
Planetary Age & Astronomical Calendar Calculator
Calculate your exact astronomical age in years and days across all planets in our solar system with next planetary birthday countdowns.
Time Converters
Processed in your browser
Islamic Hijri and Gregorian Calendar Date Converter
Convert dates between the Islamic Hijri lunar calendar (Umm al-Qura) and the Gregorian calendar with Ramadan and Eid markers.
Date Calculations
Processed in your browser
Timestamp Difference & Duration Calculator
Calculate the exact elapsed time and duration between two Unix timestamps or calendar dates in years, days, hours, and business days.
Date Calculations
Processed in your browser
Gregorian Leap Year & Century Math Verifier
Evaluate leap year status, 400-year cycle exceptions, and tropical year drift using precise astronomical algorithms.
Date Calculations
Processed in your browser
Global Multi-City Meeting Time Overlap Matrix
Visualize green business hour overlap windows across multiple worldwide time zones simultaneously.
Date Calculations
Processed in your browser
Corporate Fiscal Year & 4-4-5 Retail Period Calculator
Compute corporate quarterly fiscal boundaries, 4-4-5/4-5-4 retail accounting periods, and fiscal week numbers.
Date Calculations
Processed in your browser
Solar Noon, Twilight & Daylight Length Calculator
Compute exact solar noon, civil twilight, and daylight hours for any latitude and day of the year.
Date Calculations
Processed in your browser
24/7 Work Shift Rotational Schedule Planner
Model industrial and healthcare rotational shift patterns (4-on-4-off, Panama, DuPont) across teams with calendar visualization.
Time Converters
Processed in your browser
Hebrew (Jewish) Lunar-Solar & Gregorian Calendar Converter
Convert dates bi-directionally between the Hebrew lunisolar calendar and civil Gregorian dates with Jewish year computation.
Time Converters
Processed in your browser
Cron Expression Next Execution Runs Visualizer
Parse 5-part crontab expressions and display the next 10 exact execution timestamps with human-readable explanations.
Time Converters
Processed in your browser
Precision Time Unit & Epoch Resolution Converter
High-precision conversion between nanoseconds, microseconds, milliseconds, seconds, hours, solar days, and Julian years.
Timers & Stopwatches
Processed in your browser
Live Event Date & Target Time Countdown Ticker
Track exact remaining days, hours, minutes, and seconds until upcoming milestones, product launches, or holidays with live audio chime.
Timers & Stopwatches
Processed in your browser
Circadian Power Nap & Focus Recovery Timer
Scientific nap timer with preset windows for 10-minute alertness, 20-minute motor memory, and 90-minute REM rejuvenation.
Date Calculations
Processed in your browser
Detailed Age & Milestone Calculator
Calculate your exact age in years, months, weeks, days, hours, minutes, and seconds with next birthday countdown.
Date Calculations
Processed in your browser
Business Days & Working Days Calculator
Calculate the number of business days between two dates, or add/subtract working days excluding weekends.
Date Calculations
Processed in your browser
Day of the Year & Leap Year Progress
Discover the exact day number of the year (1-366), days remaining, leap year status, and live annual completion percentage.
Date Calculations
Processed in your browser
Time Duration & Timesheet Calculator
Calculate hours and minutes between two times with lunch break deductions and total pay calculation.
Time Converters
Processed in your browser
ISO 8601 & RFC Timestamp Formatter
Parse, convert, and format dates into ISO 8601, RFC 2822, RFC 3339, Unix Epoch, and UTC strings.
Time Converters
Processed in your browser
Time Ago & Relative Date Calculator
Calculate human-friendly relative time phrases (e.g. 3 hours ago, in 5 days, 2 months ago) and reciprocal calendar dates.
Time Converters
Processed in your browser
World Time Zone Converter & Meeting Planner
Compare multiple global time zones simultaneously with an interactive 24-hour meeting time planner slider.
Math & Number Tools
Everyday mathematical calculators and percentage helpers.
Calculators
Processed in your browser
Percentage Calculator & Formula Solver
Calculate percentages, percentage increases, discounts, and differences with instant step-by-step mathematical formulas.
Calculators
Processed in your browser
Image & Video Aspect Ratio Resizer Calculator
Calculate locked width and height scaling dimensions for standard aspect ratios (16:9, 4:3, 1:1, 9:16).
Calculators
Processed in your browser
Trip Fuel Cost & Mileage Calculator
Estimate road trip fuel costs, fuel volume needed, and cost per mile/kilometer.
Calculators
Processed in your browser
Cryptographic Random Number Range Generator
Generate cryptographically secure random numbers with min/max ranges and unique options.
Unit Converters
Processed in your browser
Fraction to Decimal & Percentage Converter
Reduce fractions to lowest terms and convert to decimal and percentage.
Finance & Loans
Processed in your browser
Discount & Double Sale Price Calculator
Calculate clearance discounts, additional stacked coupons, and total dollar savings.
Finance & Loans
Processed in your browser
Sales Tax & Reverse VAT Calculator
Calculate forward and reverse Sales Tax, VAT, and GST with gross and net price breakdowns.
Finance & Loans
Processed in your browser
Simple vs Compound Interest Comparator
Side-by-side comparison of simple vs compound interest growth over time.
Calculators
Processed in your browser
Restaurant Tip & Bill Split Calculator
Calculate dining gratuity tips (15%, 18%, 20%) and split bills evenly per person with round-up options.
Unit Converters
Processed in your browser
Universal Unit Converter
Instant unit converter across 8 categories: Length, Weight, Temperature, Volume, Speed, Area, Digital Storage, and Time.
Finance & Loans
Processed in your browser
Compound Interest Calculator
Calculate how your money grows over time with compound interest, regular monthly deposits, and flexible compounding frequencies.
Finance & Loans
Processed in your browser
Loan & Mortgage Calculator
Calculate monthly loan and mortgage payments, total interest costs, and full amortization schedule with CSV export.
Calculators
Processed in your browser
Fraction Calculator with Steps
Add, subtract, multiply, and divide fractions and mixed numbers with step-by-step explanations.
Calculators
Processed in your browser
Aspect Ratio Calculator & Dimensions Tool
Calculate missing image or video dimensions, find simplified aspect ratios (16:9, 4:3, 1:1), and generate CSS aspect-ratio code.
Finance & Loans
Processed in your browser
Tip Calculator & Bill Splitter
Calculate restaurant tips, split bills among multiple people, and round up totals with custom tip percentages and currency support.
Unit Converters
Processed in your browser
Roman Numeral Converter & Translator
Convert Roman numerals to numbers and Arabic integers to Roman numerals with instant step-by-step subtractive explanation.
Calculators
Processed in your browser
Compass Bearing & Heading Azimuth Calculator
Calculate initial and final compass bearing (0°–360°) and 16-point cardinal direction between two GPS coordinates.
Finance & Loans
Processed in your browser
Sales Tax & VAT Calculator
Calculate sales tax, VAT, and reverse pre-tax amounts with US and international tax rate presets.
Calculators
Processed in your browser
Centripetal Force & Acceleration Calculator
Calculate circular motion Centripetal Force ($F_c = mv²/r$), acceleration, and angular velocity in Newtons.
Calculators
Processed in your browser
Compound Annual Growth Rate (CAGR) Calculator
Calculate investment Compound Annual Growth Rate (CAGR), absolute total returns, and growth multiple.
Calculators
Processed in your browser
Density, Mass & Volume Physics Calculator
Calculate material Density, Mass, or Volume (ρ = m/V) with substance presets (Gold, Water, Steel).
Calculators
Processed in your browser
Retail Discount & Final Price Savings Calculator
Calculate final checkout price, dollar savings, and sales tax from original retail price and discount percentage.
Calculators
Processed in your browser
Elevation Grade, Slope & Incline Calculator
Calculate road slope incline percentage (%), rise/run ratio, and angle of elevation in degrees.
Calculators
Processed in your browser
Haversine GPS Great-Circle Distance Calculator
Calculate spherical great-circle distance between two latitude and longitude coordinates in kilometers, miles, and nautical miles.
Calculators
Processed in your browser
Kinetic & Potential Energy Physics Calculator
Calculate mechanical Kinetic ($E_k = ½mv²$) and Gravitational Potential Energy ($E_p = mgh$) in Joules.
Calculators
Processed in your browser
Light Wavelength, Frequency & Photon Energy Calculator
Calculate electromagnetic photon energy (eV & Joules), frequency (THz), and visible light color from wavelength.
Calculators
Processed in your browser
Ohm's Law & Electrical Power Calculator
Calculate Voltage (V), Current (I), Resistance (R), and Power (P) in electrical circuits.
Calculators
Processed in your browser
Radioactive Decay & Half-Life Calculator
Calculate isotope remaining quantity, decay constant, and elapsed half-lives over time.
Calculators
Processed in your browser
Resistor Color Code 4-Band & 5-Band Decoder
Decode 4-band and 5-band electronic resistor color codes to Ohms, tolerance, and multiplier values.
Calculators
Processed in your browser
Physics Projectile Motion Kinematics Calculator
Calculate projectile flight time, maximum peak height, and trajectory range with visual parabolic canvas.
Unit Converters
Processed in your browser
GPS Coordinate Format Converter (DD, DMS, DDM)
Convert between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and Degrees Decimal Minutes (DDM).
Unit Converters
Processed in your browser
IEEE-754 Floating Point Binary & Hex Converter
Convert decimal floating-point numbers to 32-bit single and 64-bit double IEEE-754 binary representations.
Unit Converters
Processed in your browser
Maidenhead Grid Locator QTH Converter
Convert Ham radio QTH Maidenhead grid squares (e.g. FN31pr) to and from GPS latitude/longitude.
Calculators
Processed in your browser
BMI Calculator & Healthy Weight Range Solver
Calculate Body Mass Index (BMI), healthy weight range, and WHO classification with metric and imperial units.
Unit Converters
Processed in your browser
Roman Numeral Converter & Arithmetic Calculator
Convert bidirectional integers (1 to 3,999,999) to Roman numerals with arithmetic operations.
Calculators
Processed in your browser
Circle & Sphere Calculator with Formulas
Calculate radius, diameter, circumference, circle area, sphere surface area, and volume from any single known property.
Calculators
Processed in your browser
Random Number Generator, Dice Roller & Raffle Picker
Generate cryptographically fair random numbers, roll tabletop dice (D6, D20, D100), and pick unique raffle winners.
Unit Converters
Processed in your browser
Scientific & Engineering Notation Converter
Convert decimal numbers into standard Scientific Notation, Engineering Notation, and E-notation with power of 10 steps.
Finance & Loans
Processed in your browser
Discount, Sale Price & Stacked Coupon Calculator
Calculate final sale prices, dollar savings, double stacked coupon discounts, and sales tax addition.
Unit Converters
Processed in your browser
Angle Converter (Degrees, Radians, Gradians)
Convert angles between Degrees, Radians, Gradians, Arcminutes, Arcseconds, and Full Revolutions.
Unit Converters
Processed in your browser
Area Converter (Square Meters, Acres, Hectares)
Convert land and spatial area measurements between Square Meters, Square Feet, Acres, Hectares, and Square Miles.
Unit Converters
Processed in your browser
Cooking Recipe Volume & Weight Converter
Convert recipe measurements between Cups, Tablespoons, Teaspoons, Fluid Ounces, Grams, and Milliliters.
Unit Converters
Processed in your browser
Data Rate & Download Time Calculator
Calculate bandwidth transfer speeds and exact download times for any file size over 4G, 5G, and Gigabit connections.
Unit Converters
Processed in your browser
Force Converter (Newtons, Dynes, lbf, kgf)
Convert physical force between Newtons (N), Kilonewtons (kN), Dynes, Pound-force (lbf), and Kilogram-force (kgf).
Unit Converters
Processed in your browser
Power Converter (Watts, Kilowatts, Horsepower, BTU/h)
Convert power ratings between Watts, Kilowatts, Megawatts, Metric and Mechanical Horsepower, and BTU per hour.
Unit Converters
Processed in your browser
Typography Units Converter (PX, REM, EM, PT)
Convert font and layout sizes between Pixels (px), Root-EM (rem), EM, Points (pt), and Inches.
Finance & Loans
Processed in your browser
Auto Loan Financing & Monthly Payment Calculator
Calculate monthly car loan payments, total interest, and total purchase cost with sales tax, down payments, and trade-in allowances.
Finance & Loans
Processed in your browser
Cost of Goods Sold (COGS) & Gross Margin Calculator
Calculate Cost of Goods Sold (COGS), Gross Profit, and Gross Profit Margin % for retail and e-commerce.
Finance & Loans
Processed in your browser
Debt Snowball & Avalanche Payoff Planner
Calculate your debt-free date and total interest saved using the Debt Snowball or Debt Avalanche payoff strategies.
Finance & Loans
Processed in your browser
Emergency Fund Savings Buffer Calculator
Calculate your recommended 3, 6, and 12-month emergency cash buffer based on essential living expenses.
Finance & Loans
Processed in your browser
Freelance & Consultant Hourly Rate Calculator
Calculate your optimal freelance hourly billable rate based on target salary, taxes, overhead, and non-billable hours.
Finance & Loans
Processed in your browser
Net Worth Asset & Liability Calculator
Calculate your personal net worth and liquidity ratio by tallying assets against outstanding liabilities.
Finance & Loans
Processed in your browser
Personal Runway & Burn Rate Calculator
Calculate startup or personal financial runway in months and forecast your zero-cash depletion date.
Finance & Loans
Processed in your browser
Present Value & Discounted Cash Flow (DCF) Calculator
Calculate the present discounted value (PV) of future cash flows and capital investments.
Finance & Loans
Processed in your browser
Stock Dividend Yield & Growth Calculator
Project dividend income, dividend yield on cost, and compound growth with automatic DRIP reinvestment.
Finance & Loans
Processed in your browser
Subscription Cost Annualizer & Expense Auditor
Calculate total annual and 5-year compound costs of recurring software, streaming, and membership subscriptions.
Calculators
Processed in your browser
Binary Bitwise & Logic Gate Calculator
Perform bitwise operations (AND, OR, XOR, NOT, NAND, NOR, Shift Left <<, Shift Right >>) on binary, decimal, and hexadecimal numbers.
Calculators
Processed in your browser
GCD & LCM Calculator
Calculate Greatest Common Divisor (GCD) and Least Common Multiple (LCM) for two or more integers with step-by-step factorization.
Calculators
Processed in your browser
Mean, Median, Mode & Standard Deviation Calculator
Calculate mean, median, mode, sample and population standard deviation, variance, and IQR from any dataset.
Calculators
Processed in your browser
Percentage Change & Increase/Decrease Calculator
Calculate percentage increase or decrease between initial and final values with difference breakdown.
Calculators
Processed in your browser
Permutations & Combinations (nPr & nCr) Calculator
Calculate permutations nPr and combinations nCr with factorials and order importance explanations.
Calculators
Processed in your browser
Quadratic Equation Solver with Steps
Solve quadratic equations ax² + bx + c = 0 with real and complex roots, discriminant, and parabola vertex.
Calculators
Processed in your browser
Significant Figures (Sig Figs) Calculator
Count significant digits in any number, round to target sig figs, and format in scientific notation.
Calculators
Processed in your browser
Z-Score & Normal Distribution Probability Calculator
Calculate standard score (Z-score), percentile rank, and left/right tail p-value probabilities.
Unit Converters
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Data Storage & Bandwidth Converter
Convert bits, bytes, KB, MB, GB, TB, and network bandwidth transfer rates (Mbps, Gbps).
Unit Converters
Processed in your browser
Length & Distance Converter
Convert length and distance between meters, kilometers, feet, inches, yards, miles, and nautical miles.
Unit Converters
Processed in your browser
Mass & Weight Converter
Convert weights between grams, kilograms, metric tonnes, pounds, ounces, and stones.
Unit Converters
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Pressure Unit Converter
Convert pressure across Pascals (Pa), Bar, PSI, Standard Atmosphere (atm), and mmHg.
Unit Converters
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Speed & Velocity Converter
Convert speed between kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), knots, and Mach.
Unit Converters
Processed in your browser
Temperature Scale Converter
Convert temperatures across Celsius, Fahrenheit, Kelvin, and Rankine scales with benchmark markers.
Unit Converters
Processed in your browser
Volume & Liquid Capacity Converter
Convert volume across liters, milliliters, cubic meters, gallons, quarts, pints, cups, and fluid ounces.
Finance & Loans
Processed in your browser
Break-Even Analysis & Volume Calculator
Calculate the break-even point in unit volume and dollar revenue based on fixed costs, variable costs, and sales price.
Finance & Loans
Processed in your browser
Currency & Number to Words Converter
Convert numerical monetary amounts and numbers into English words for cheques, legal contracts, and invoices.
Finance & Loans
Processed in your browser
Inflation Impact & Purchasing Power Calculator
Calculate how inflation erodes purchasing power over time and determine equivalent future money value.
Finance & Loans
Processed in your browser
Gross Margin & Markup Calculator
Calculate gross profit margin percentage and markup percentage bi-directionally from cost and revenue.
Finance & Loans
Processed in your browser
Mortgage Amortization Schedule Calculator
Calculate monthly mortgage payments, total interest paid, and inspect interactive yearly amortization schedules.
Finance & Loans
Processed in your browser
ROI (Return on Investment) Calculator
Calculate total Return on Investment (ROI), annualized ROI rate, and net capital gains percentage.
Finance & Loans
Processed in your browser
Salary to Hourly Pay Converter
Convert annual salary to hourly wage, weekly, bi-weekly, monthly pay, and overtime rates.
QR & Barcode Tools
Generate custom QR codes instantly with customizable error correction and PNG/SVG download.
Generators
Processed in your browser
Barcode & UPC Check Digit Calculator
Calculate and verify check digits for EAN-13, EAN-8, UPC-A, UPC-E, ISBN-10, and ISBN-13 with step-by-step mathematical breakdowns.
Generators
Processed in your browser
Code 128 Barcode Generator
Generate high-resolution Code 128 (A/B/C) barcodes in-browser with automatic character encoding, SVG/PNG export, and customizable dimensions.
Generators
Processed in your browser
Code 39 Alphanumeric Barcode Generator
Create standard Code 39 industrial barcodes supporting uppercase alphanumeric characters, asterisks start/stop codes, and optional Modulo-43 checksums.
Generators
Processed in your browser
QR Code Generator
Generate custom QR codes instantly for URLs, Wi-Fi networks, and contact texts with PNG download.
Generators
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EAN-8 Compact Barcode Generator
Generate standard 8-digit EAN-8 compact retail barcodes with automatic checksum calculation, printable SVG vectors, and PNG download.
Generators
Processed in your browser
Event Calendar (.ics) QR Code Generator
Generate iCalendar VEVENT QR codes for instant 1-scan appointment and calendar event import into Google Calendar, Outlook, and Apple Calendar.
Generators
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Geo Location & Map Coordinates QR Generator
Generate map location QR codes using latitude and longitude coordinates or Google Maps universal URLs for 1-tap navigation.
Generators
Processed in your browser
ITF-14 Shipping Barcode Generator
Generate standard ITF-14 (Interleaved 2 of 5) shipping container barcodes with heavy top/bottom bearer bars and Modulo-10 checksum validation.
Generators
Processed in your browser
QR Code Print Size & DPI Calculator
Calculate minimum physical print size (mm, cm, inches) and pixel resolutions (300 DPI) based on scanning distance and payload density.
Generators
Processed in your browser
UPC-A Retail Product Barcode Generator
Generate standard 12-digit Universal Product Code (UPC-A) barcodes with automated Modulo 10 check digit calculation and SVG/PNG export.
Generators
Processed in your browser
vCard Contact QR Code Maker
Generate standard vCard 3.0 contact card QR codes for smartphone address book import with name, phone, email, organization, and social fields.
Generators
Processed in your browser
Wi-Fi QR Code Generator & Printable Card
Generate scannable Wi-Fi QR codes and printable guest Wi-Fi sign cards for instant smartphone connections without typing passwords.
Generators
Processed in your browser
Code 128 High-Density Alphanumeric Barcode Builder
Generate high-density ISO/IEC 15417 Code 128 barcodes supporting full ASCII text, inventory serials, and shipping tracking numbers.
Generators
Processed in your browser
Cryptocurrency Wallet Payment QR Generator
Generate multi-cryptocurrency payment QR codes (Bitcoin BIP-21, Ethereum EIP-681, Solana, USDT) with pre-filled amounts and memo labels.
Generators
Processed in your browser
Pre-Composed Email (mailto:) QR Code Generator
Generate QR codes that open your customer's default email client with recipient address, subject line, and draft message body pre-filled.
Generators
Processed in your browser
iCalendar Event (.ics) QR Code Builder
Create calendar invite QR codes for webinars, conferences, and parties that add events directly to Google Calendar, Apple Calendar, and Outlook.
Generators
Processed in your browser
Geo Location & Coordinates QR Code Generator
Generate GPS latitude and longitude QR codes that automatically open native Google Maps or Apple Maps directions when scanned.
Generators
Processed in your browser
GS1-128 Shipping Label Barcode Generator
Generate GS1-128 (UCC/EAN-128) logistics barcodes with Application Identifiers (AI) for SSCC, GTIN, batch numbers, and expiry dates.
Generators
Processed in your browser
ISBN-13 Book Publishing Barcode Generator
Generate International Standard Book Number (ISBN-13) EAN-13 barcodes with 978/979 bookland prefixes and price addon barcodes.
Generators
Processed in your browser
ITF-14 Shipping Master Carton Barcode Generator
Generate standard 14-digit Interleaved 2 of 5 (ITF-14) carton barcodes complete with mandatory protective bearer bars for corrugated shipping boxes.
Generators
Processed in your browser
SMS Text Message (SMSTO:) QR Code Generator
Generate QR codes that open mobile text messaging apps with destination phone number and pre-written message text.
Generators
Processed in your browser
vCard QR Code & Digital Business Card Generator
Generate standard vCard 3.0/4.0 contact QR codes with name, phone, email, organization, job title, and address for 1-tap phonebook saving.
Generators
Processed in your browser
Barcode Quiet Zone & Print Contrast Ratio Evaluator
Evaluate minimum barcode quiet zone dimensions (10x module width) and symbol contrast ratios according to ISO/IEC 15416 standards.
Generators
Processed in your browser
Codabar (NW-7) Library & Blood Bank Barcode Generator
Encode legacy Codabar symbology used in blood banks, library asset catalogs, and airbills with custom start/stop characters (A, B, C, D).
Generators
Processed in your browser
EPC QR Code (SEPA Instant Credit Transfer) Generator
Generate European Payments Council (EPC) Quick Response codes for European SEPA credit transfer mobile banking apps.
Generators
Processed in your browser
Video Conference Meeting Launch QR Code Generator
Generate immediate one-tap join QR codes for Zoom meeting URLs, Google Meet calls, and Apple FaceTime links.
Generators
Processed in your browser
GS1 DataBar Omnidirectional & Expanded Retail Barcode Builder
Encode GS1 DataBar coupons, fresh produce weights, and point-of-sale retail identifiers with Application Identifiers (AIs).
Generators
Processed in your browser
Pharmaceutical Pharmacode (Laetus Code) Packaging Generator
Generate single-track numerical Pharmacode packaging control symbols used across pharmaceutical production inspection systems.
Generators
Processed in your browser
USPS Intelligent Mail Barcode (IMb) Payload Calculator
Calculate 31-digit USPS Intelligent Mail Barcode payloads: Barcode Identifier, Service Type ID, Mailer ID, and Routing Zip.
Generators
Processed in your browser
Swiss QR-Bill (QR-Rechnung) Payment Standard Builder
Construct official Swiss QR-Bill payment payload data conforming to ISO 20022 and SIX payment specifications with QR-IBAN.
Generators
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Telecom USSD Code & Telephone Dialing QR Generator
Build quick action QR codes for dialing customer service numbers and mobile carrier USSD service strings (*123#, *100#).
Generators
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2FA Authenticator TOTP Setup QR Code Builder
Generate RFC 6238 `otpauth://totp/...` QR codes for Google Authenticator, Authy, and 1Password with custom secret keys.
Generators
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Custom QR Code with Logo Generator
Generate high-resolution custom QR codes with embedded center logo, custom foreground and background colors, error correction settings, and instant PNG/SVG download.
Generators
Processed in your browser
Barcode Generator (Code 128, EAN-13, UPC-A)
Generate standard 1D linear barcodes including Code 128, EAN-13, UPC-A, and Code 39 in real-time with custom bar dimensions, human-readable text toggles, and SVG/PNG download.
File & Data Tools
Browser utilities for processing files, analyzing checksums, inspecting binary data, and converting archives.
File Checksums & Integrity
Processed in your browser
Binary & Hexadecimal Byte Stream Converter
Convert raw binary bit streams into hexadecimal bytes, ASCII characters, and decimal values with spacing and grouping.
File Checksums & Integrity
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Data URI to File Blob & Asset Downloader
Decode Base64 Data URIs into downloadable binary files with automatic MIME-type detection and file extension mapping.
File Checksums & Integrity
Processed in your browser
File Hash & Checksum Multi-Algorithm Calc
Compute SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic checksums for local files directly in-browser using Web Cryptography API.
File Checksums & Integrity
Processed in your browser
JSON to YAML Clean Converter
Convert JSON structured objects into clean, indented YAML data structures with syntax validation and clipboard copy.
File Checksums & Integrity
Processed in your browser
YAML to JSON Data Structure Converter
Parse YAML documents into validated, beautified JSON with customizable indentation and error detection.
Zip & Archive Inspection
Processed in your browser
Tarball & Archive Header Structure Inspector
Client-side binary parser for POSIX tar archive file headers, listing member files and sizes without disk extraction.
CSV & Delimited Data
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CSV Row Filter & Column Sort Utility
Filter, sort, and slice CSV datasets in-browser by column criteria with instant filtered CSV download.
CSV & Delimited Data
Processed in your browser
CSV to TSV & Custom Delimiter Converter
Convert comma-separated datasets into tab-separated, pipe-separated, or semicolon-separated values.
CSV & Delimited Data
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Markdown Table to CSV & Delimited Converter
Extract tabular data from GitHub-flavored Markdown tables and convert to CSV or tab-delimited formats.
File Diff & Duplicate Detection
Processed in your browser
Text File Whitespace & Empty Line Trimmer
Clean and normalize text files by removing trailing whitespace, consecutive blank lines, and carriage returns.
File Checksums & Integrity
Processed in your browser
File Multipart Chunk Splitter & Byte Offset Calculator
Calculate multipart upload chunk counts, byte ranges, HTTP Content-Range headers, and S3 multipart part sizes.
File Checksums & Integrity
Processed in your browser
File Magic Bytes Signature & MIME Type Inspector
Inspect file binary headers and magic number bytes to accurately detect genuine file format and MIME type regardless of extension.
File Checksums & Integrity
Processed in your browser
JSON Schema Validator & Draft-07 Structure Checker
Validate JSON data structures against JSON Schema definitions with error path pinpointing, type checks, and required property validation.
Zip & Archive Inspection
Processed in your browser
In-Browser Gzip & Deflate Compression Ratio Simulator
Test text, JSON, and HTML payloads with native browser CompressionStream API to view exact compressed byte savings and compression ratios.
File Checksums & Integrity
Processed in your browser
Base64 File Encoder & Decoder Lab
Encode local images, audio, documents into Base64 Data URIs or decode Base64 strings into downloadable files.
Zip & Archive Inspection
Processed in your browser
Parquet Big Data Metadata & Schema Inspector
Inspect Apache Parquet columnar file magic headers, row group statistics, data schemas, and compression formats in-browser.
File Checksums & Integrity
Processed in your browser
Binary Hex Dump Inspector & Viewer
Inspect raw file bytes in traditional 16-byte hex format with byte offsets and printable ASCII characters.
CSV & Delimited Data
Processed in your browser
CSV Header Column Reorder & Cleaner Tool
Reorder, rename, delete, and sanitize CSV table columns with interactive drag-and-drop column positioning and CSV export.
File Checksums & Integrity
Processed in your browser
File Checksum & Integrity Verifier
Compute SHA-256, SHA-512, SHA-384, and SHA-1 cryptographic hashes of local files using the client-side Web Crypto API.
CSV & Delimited Data
Processed in your browser
CSV to SQL INSERT Statements Generator
Convert CSV table data into SQL INSERT INTO queries with batch chunking, string escaping, and database dialect presets.
File Checksums & Integrity
Processed in your browser
File Size & Byte Converter Calculator
Convert file storage capacities between Bytes, KB/KiB, MB/MiB, GB/GiB, and TB in Decimal (1000) and Binary (1024) systems.
CSV & Delimited Data
Processed in your browser
NDJSON & JSON Lines (JSONL) Converter
Convert between Newline Delimited JSON (NDJSON / JSONL) and standard formatted JSON arrays with syntax validation.
Zip & Archive Inspection
Processed in your browser
ZIP Archive Metadata Inspector
Inspect contents, file listings, compression ratios, CRC-32 checksums, and timestamps of ZIP archives locally.
CSV & Delimited Data
Processed in your browser
TSV (Tab-Separated) to JSON Records Converter
Convert tab-delimited values (TSV / copy-paste from Excel & Google Sheets) into clean JSON objects with automatic type detection.
CSV & Delimited Data
Processed in your browser
CSV Column Extractor & Filter Tool
Extract specific columns from large CSV files and filter rows matching custom search queries or criteria.
File Diff & Duplicate Detection
Processed in your browser
Text & Code Line Number Prefixer and Formatter
Prepend formatted line numbers to text, source code, and log files with customizable zero padding, prefixes, and blank line filters.
CSV & Delimited Data
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CSV Delimiter & Separator Converter
Convert structured tabular data between Comma (,), Semicolon (;), Tab (TSV), Pipe (|), and Colon delimiters.
CSV & Delimited Data
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CSV to Markdown Table Generator
Transform CSV or spreadsheet tabular data into GitHub-Flavored Markdown tables with column alignment.
File Diff & Duplicate Detection
Processed in your browser
Text Diff Side-by-Side Comparator
Compare two text snippets side-by-side with line-by-line visual difference highlighting for additions and deletions.
File Diff & Duplicate Detection
Processed in your browser
Text Duplicate Lines Cleaner & Deduper
Remove duplicate lines from text lists with case-sensitivity options, whitespace trimming, and sorting filters.
Web & Frontend Tools
Modern frontend development utilities for CSS layouts, HTML scaffolding, SVG manipulation, and UI components.
UI Component & Element Generators
Processed in your browser
Semantic HTML Details & Summary Accordion Styler
Style native browser `<details>` and `<summary>` elements into sleek animated accordion FAQs with pure CSS.
UI Component & Element Generators
Processed in your browser
Pure CSS Tooltip & Speech Bubble Arrow Generator
Generate lightweight, zero-JS tooltip callouts and comic speech bubbles with border-triangle arrow pointers.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Aspect Ratio & Responsive Padding Hack Calculator
Calculate modern CSS `aspect-ratio` properties and legacy padding-top percentage fallbacks for responsive 16:9, 4:3, and 1:1 boxes.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Filter Effects Live Playground & Styler
Interactively compose multi-stage CSS `filter` properties: blur, contrast, brightness, grayscale, hue-rotate, invert, saturate, and sepia.
CSS Effects, Shadows & Animations
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CSS Multi-Stop Linear, Radial & Conic Gradient Studio
Design modern multi-color CSS gradients with angle controls, radial shapes, and 360-degree conic pie stops.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Text Stroke, Outline & Layered Shadow Builder
Create retro, outlined, and multi-layered typographic text effects using `-webkit-text-stroke` and layered `text-shadow` values.
HTML Scaffolding, Meta & Entities
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WAI-ARIA Accessible Modal Dialog & Focus Trap Builder
Generate W3C WAI-ARIA compliant modal dialog markup and keyboard focus-trapping JavaScript (Esc key, tab cycles).
HTML Scaffolding, Meta & Entities
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HTML5 Accessible Audio & Video Embed Code Builder
Construct semantic, accessible HTML5 `<video>` and `<audio>` tags with multiple source fallbacks, posters, and `<track>` subtitle files.
SVG Path & Vector Graphics
Processed in your browser
SVG Multi-Point Star, Badge & Polygon Generator
Create scalable geometric SVG stars, guarantee badges, sunbursts, and regular polygons with customizable point counts and inner radiuses.
SVG Path & Vector Graphics
Processed in your browser
SVG Curved Wave Section Divider Generator
Generate smooth, customizable SVG wave transitions between webpage sections with adjustable peaks, smoothness, and colors.
UI Component & Element Generators
Processed in your browser
CSS Button Styles & Micro-Animation Builder
Build modern interactive buttons with ripple, shimmer, glow, lift, and gradient hover states in clean vanilla CSS.
UI Component & Element Generators
Processed in your browser
CSS Pure Geometric Shapes Generator
Generate zero-HTTP CSS triangles, diamonds, and trapezoids using border-width and clip techniques with instant HTML/CSS export.
UI Component & Element Generators
Processed in your browser
Responsive Breakpoints & Media Query Helper
Interactive visualizer for standard device breakpoints (mobile, tablet, laptop, 4K) with CSS media query generation.
CSS Effects, Shadows & Animations
Processed in your browser
CSS clamp() Fluid Typography & Spacing Calculator
Calculate viewport-relative responsive typography using clamp(min, preferred, max) with custom viewport bounds and rem scaling.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Modern Custom Scrollbar Styler
Design cross-browser custom scrollbars using modern standard scrollbar-color and WebKit pseudo-elements.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Grid Interactive Template Builder
Visual grid generator with configurable columns, rows, gap spacing, fractional fr units, and copyable CSS grid layout declarations.
CSS Effects, Shadows & Animations
Processed in your browser
CSS cubic-bezier() Easing Curve Builder
Interactive bezier curve editor with drag control points, real-time animation comparison against standard ease curves, and copyable CSS.
HTML Scaffolding, Meta & Entities
Processed in your browser
HTML Entity Encoder & Special Characters Decoder
Encode and decode reserved characters (<, >, &, quotes, emojis) to named HTML entities, decimal, or hexadecimal representations.
SVG Path & Vector Graphics
Processed in your browser
SVG Line Drawing & Dasharray Animator
Calculate path length, stroke-dasharray, and stroke-dashoffset keyframe animations for sleek SVG line-drawing effects.
SVG Path & Vector Graphics
Processed in your browser
SVG to CSS Data URI Background Generator
Convert raw SVG vector code into URL-encoded, minified CSS background-image: url('data:image/svg+xml,...') declarations.
UI Component & Element Generators
Processed in your browser
CSS Glassmorphism Card Generator
Design translucent frosted glass cards with CSS backdrop-filter, border reflection highlights, and background blurs.
UI Component & Element Generators
Processed in your browser
CSS Neumorphism & Soft UI Generator
Design tactile soft UI neumorphic buttons, cards, and inset shapes with custom light/dark drop-shadow physics.
UI Component & Element Generators
Processed in your browser
Web-Safe System Font Stack Builder
Generate zero-bandwidth cross-platform native system font stacks (Modern UI, Monospace, Humanist, Editorial Serif).
CSS Effects, Shadows & Animations
Processed in your browser
CSS Box-Shadow Multi-Layer Builder
Design smooth layered 3D elevations, ambient lighting, and realistic multi-layer CSS box-shadows.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Clip-Path Polygon Shape Generator
Visual CSS clip-path polygon generator with presets for triangles, chevrons, stars, hexagons, and custom polygon coordinate handles.
CSS Effects, Shadows & Animations
Processed in your browser
CSS Flexbox Visual Playground & Code Builder
Interactive visual CSS Flexbox designer with real-time controls for direction, alignment, wrap, gap, and item properties.
CSS Effects, Shadows & Animations
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CSS Gradient Mesh & Ambient Aura Generator
Generate high-end ambient radial and mesh gradient background styles for modern website hero sections.
HTML Scaffolding, Meta & Entities
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HTML Table to Responsive DIV/Grid Converter
Convert legacy HTML <table> elements into responsive CSS Grid and Flexbox <div> containers with accessible semantics.
SVG Path & Vector Graphics
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SVG Organic Blob Shape Generator
Generate smooth fluid organic SVG vector blob shapes with customizable randomness, control points, and SVG file export.
SVG Path & Vector Graphics
Processed in your browser
SVG Path Visualizer & Data Editor
Inspect SVG path d-attribute command strings with live coordinate bounds, node handle highlighting, and path length metrics.
Finance & Business Tools
Calculators and financial planners for investments, loan amortization, business runway, pricing, and accounting.
Investment & Compound Returns
Processed in your browser
CAGR Annual Growth Rate Calculator
Calculate Compound Annual Growth Rate (CAGR), multi-year portfolio progression, and total percentage appreciation.
Investment & Compound Returns
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Inflation & Purchasing Power Calculator
Forecast future purchasing power decay, real vs. nominal return rates, and historical dollar depreciation.
Investment & Compound Returns
Processed in your browser
Payback Period & Capital Investment Calc
Determine simple and discounted payback periods, cumulative cash flow milestones, and break-even recovery timelines.
Loan, Mortgage & Amortization
Processed in your browser
Debt Snowball vs. Avalanche Payoff Calculator
Compare Debt Snowball and Debt Avalanche strategies with payoff dates and interest comparisons.
Loan, Mortgage & Amortization
Processed in your browser
Mortgage Extra Payment & Early Payoff Calculator
Model additional monthly principal payments to calculate total interest saved and years shaved off loan amortization.
Debt Payoff & Personal Runway
Processed in your browser
Freelance Project Fixed-Bid Quote Calculator
Price fixed-scope freelance and consulting contracts based on estimated hours, risk buffer margins, and desired profit margins.
Debt Payoff & Personal Runway
Processed in your browser
SaaS Churn Rate & Customer LTV Calculator
Calculate customer churn rate, revenue churn, customer lifetime value (LTV), LTV:CAC ratio, and average revenue per user (ARPU).
Debt Payoff & Personal Runway
Processed in your browser
Working Capital & Liquidity Ratio Calculator
Calculate current ratio, quick ratio (acid-test), cash ratio, and net working capital for corporate balance sheet health checks.
Freelance Pricing & Margins
Processed in your browser
Sales Tax & VAT Gross/Net Calculator
Compute tax-inclusive (gross), tax-exclusive (net), reverse tax extraction, and multi-bracket sales taxes with receipt breakdowns.
Freelance Pricing & Margins
Processed in your browser
Tip & Bill Split Group Calculator
Split restaurant and bar bills accurately among multiple guests with custom tip percentages, tax distribution, and rounding modes.
Investment & Compound Returns
Processed in your browser
Commercial Real Estate Capitalization Rate (Cap Rate) Calculator
Compute capitalization rate, net operating income (NOI), and property valuation for real estate investments.
Investment & Compound Returns
Processed in your browser
Net Present Value (NPV) & Project Discount Calculator
Evaluate capital projects and investment cash flows by calculating net present value (NPV) and discounted ROI.
Investment & Compound Returns
Processed in your browser
Rule of 72 Investment Doubling Time Calculator
Estimate how many years it will take an investment to double at a given annual interest rate using the Rule of 72, 70, and 69.3.
Investment & Compound Returns
Processed in your browser
Stock Option Grant & Dilution Calculator
Model startup equity grants, percentage ownership, dilution across future funding rounds, and estimated value at exit.
Loan, Mortgage & Amortization
Processed in your browser
Credit Card Minimum Payment & Interest Trap Calculator
Reveal the true cost of making only minimum payments on credit card debt and calculate accelerated payoff savings.
Loan, Mortgage & Amortization
Processed in your browser
Personal Loan APR vs. Nominal Interest Calculator
Calculate true Annual Percentage Rate (APR) factoring in origination fees and closing charges on personal and business loans.
Debt Payoff & Personal Runway
Processed in your browser
Customer Acquisition Cost (CAC) & Payback Calculator
Calculate blended and paid CAC, payback period in months, and customer lifetime value ratio in your browser.
Debt Payoff & Personal Runway
Processed in your browser
Equipment Lease vs. Buy Financial Analyzer
Compare total cost of ownership between purchasing equipment outright versus entering a lease contract.
Debt Payoff & Personal Runway
Processed in your browser
SaaS Magic Number & Sales Efficiency Calculator
Measure go-to-market sales efficiency by computing the SaaS Magic Number from Net New ARR and sales/marketing spend.
Freelance Pricing & Margins
Processed in your browser
Foreign Currency Exchange Fee & Markup Calculator
Uncover hidden bank and money transfer markups over the mid-market exchange rate and calculate exact transfer costs.
Investment & Compound Returns
Processed in your browser
Compound Interest & Growth Calculator
Calculate investment compound growth with regular monthly deposits, annual rates, compounding frequencies, and detailed year-by-year balance tables.
Investment & Compound Returns
Processed in your browser
ROI & Return on Investment Calculator
Calculate simple ROI, annualized return rate (CAGR), and net financial profit from capital investments and business campaigns.
Loan, Mortgage & Amortization
Processed in your browser
Auto Loan Payment Calculator
Estimate monthly car payments, total interest fees, sales tax, trade-in credit, and total financing costs for new or used vehicles.
Loan, Mortgage & Amortization
Processed in your browser
Mortgage Amortization Schedule Calculator
Calculate monthly mortgage payments (P&I), total interest costs, loan payoff timelines, and comprehensive amortization tables.
Debt Payoff & Personal Runway
Processed in your browser
Simple Savings Goal Planner
Calculate required weekly, monthly, and annual deposit targets to reach financial savings goals by a specific target deadline.
Debt Payoff & Personal Runway
Processed in your browser
Startup Runway & Burn Rate Calculator
Calculate startup cash runway, net and gross monthly burn rate, zero-cash projection date, and hiring scenario buffers.
Freelance Pricing & Margins
Processed in your browser
Break-Even Sales Volume Calculator
Calculate unit break-even point, sales revenue requirements, contribution margin, and target profit volume for physical and digital products.
Freelance Pricing & Margins
Processed in your browser
Discount & Sale Price Calculator
Calculate promotional discounts, stacked percentage coupons, sales tax rates, total cash savings, and final checkout totals.
Freelance Pricing & Margins
Processed in your browser
Freelance Hourly Rate Target Calculator
Calculate required freelance hourly and day billing rates to achieve targeted net income after business overhead, taxes, and vacation.
Freelance Pricing & Margins
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Markup vs Margin Profit Calculator
Convert bidirectionally between markup percentage, gross profit margin, cost of goods sold (COGS), and final selling price.
Unit Conversion Tools
High-precision unit conversion tools for engineering, science, typography, computing, and everyday measurements.
Bandwidth, Data Rates & Typography
Processed in your browser
Screen PPI, DPI, Dot Pitch & Pixel Density Calculator
Calculate Pixels Per Inch (PPI), diagonal dimension, dot pitch in millimeters, and total megapixels from display resolution.
Length, Weight, Volume & Temperature
Processed in your browser
Baker's Percentage & Bread Dough Hydration Calculator
Calculate artisanal sourdough and bread formulas by converting baker's percentages (flour 100%, hydration, salt, yeast) into gram weights.
Length, Weight, Volume & Temperature
Processed in your browser
Apparel & Dress Shirt International Size Converter
Convert chest, waist, and collar measurements across US, UK, European, and International alpha sizes (XS, S, M, L, XL, XXL).
Length, Weight, Volume & Temperature
Processed in your browser
Automotive Fuel Economy & Consumption Converter
Tri-directional fuel economy converter between Liters per 100km (L/100km), US Miles Per Gallon (MPG), UK MPG, and km/L.
Length, Weight, Volume & Temperature
Processed in your browser
International Shoe Size Sizing Matrix Converter
Accurately convert men's, women's, and children's shoe sizes between US, UK, European (EU), Japanese (CM), and Mondopoint (mm).
Energy, Power, Force & Torque
Processed in your browser
Astronomical Cosmic Distance & Parsec Converter
Convert astronomical scales between Astronomical Units (AU), Light-Years (ly), Parsecs (pc), and Petameters.
Energy, Power, Force & Torque
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Magnetic Flux Density (Tesla vs Gauss) Converter
Convert magnetic field strength and flux density across Tesla (T), Gauss (G), microtesla (uT), and Weber per square meter.
Energy, Power, Force & Torque
Processed in your browser
Radiation Absorbed & Equivalent Dose Converter
Convert radiological units including Sieverts (Sv), Roentgen equivalent man (rem), Gray (Gy), and rad for radiation physics.
Energy, Power, Force & Torque
Processed in your browser
Acoustic Frequency, Wavelength & RPM Converter
Convert sound frequencies (Hz, kHz) to rotational RPM, acoustic wavelengths in air (meters/feet), and wave periods.
Energy, Power, Force & Torque
Processed in your browser
Thermal Conductivity & Heat Transfer Rate Converter
Convert thermal conductivity units: W/(m·K), cal/(s·cm·°C), and BTU/(hr·ft·°F) for thermodynamic engineering.
Energy, Power, Force & Torque
Processed in your browser
Energy Units Converter (Joules, Calories, kWh, BTU)
Convert energy and work measurements between Joules (J), Kilojoules (kJ), Kilocalories (kcal), Watt-hours (Wh), Kilowatt-hours (kWh), and BTUs.
Fuel Economy & Speed
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Fuel Economy Converter (US MPG, Imperial MPG, L/100km)
Convert automotive fuel efficiency between US Miles Per Gallon (MPG), UK Imperial MPG, and metric Liters per 100km (L/100km).
Fuel Economy & Speed
Processed in your browser
Electric Vehicle Energy Consumption & MPGe Converter
Convert EV energy consumption between kWh/100km, miles/kWh, Wh/km, MPGe (Miles Per Gallon equivalent), and charging cost.
Energy, Power, Force & Torque
Processed in your browser
Torque Unit Converter (N·m, ft·lb, in·lb, kgf·m)
Convert rotational mechanical torque between Newton-meters (N·m), Foot-pounds (ft·lb), Inch-pounds (in·lb), kgf·m, and dyne-cm.
Bandwidth, Data Rates & Typography
Processed in your browser
Bandwidth & Data Transfer Rate Speed Calculator
Convert internet connection speeds (Mbps, Gbps) to byte transfer speeds (MB/s, GB/s) and calculate precise file download times.
Energy, Power, Force & Torque
Processed in your browser
Angle Degree, Radian & Gradian Geometry Converter
Convert geometric angles between Degrees (°), Radians (rad), Gradians (grad), Arcminutes (′), and Arcseconds (″) with live visual circle rendering.
Energy, Power, Force & Torque
Processed in your browser
Density Unit Converter (kg/m³, g/cm³, lb/ft³, lb/in³)
Convert material density between metric kg/m³, g/cm³, imperial pounds per cubic foot (lb/ft³), and pounds per cubic inch with material presets.
Energy, Power, Force & Torque
Processed in your browser
Electric Charge Converter (Coulombs, Ah, mAh, Faraday)
Convert electric charge quantity between Coulombs (C), Ampere-hours (Ah), Milliampere-hours (mAh), and Faraday constants.
Energy, Power, Force & Torque
Processed in your browser
Volumetric Liquid Flow Rate Converter (GPM, LPM, CFM)
Convert fluid flow rates between US Gallons per Minute (GPM), Liters per Minute (LPM), m³/hr, and cubic feet per minute (CFM).
Energy, Power, Force & Torque
Processed in your browser
Force Unit Converter (N, kN, lbf, dynes, kgf)
Convert mechanical force between Newtons (N), Kilonewtons (kN), Pound-force (lbf), Dynes (dyn), and Kilogram-force (kgf).
Energy, Power, Force & Torque
Processed in your browser
Illuminance & Light Converter (Lux, Foot-Candles, Lumens/m²)
Convert lighting illuminance levels between Lux (lx), Foot-candles (fc), and Phot with architectural lighting standard guidelines.
Energy, Power, Force & Torque
Processed in your browser
Power Converter (kW, Horsepower, BTU/hr, Watts)
Convert energy power between Kilowatts (kW), Mechanical Horsepower (hp), Metric PS, BTU/hr, and Refrigeration Tons.
Energy, Power, Force & Torque
Processed in your browser
Fluid Viscosity Converter (Dynamic & Kinematic)
Convert fluid viscosity between Dynamic (Pa·s, Poise, Centipoise) and Kinematic (Stokes, Centistokes, mm²/s) with liquid density coupling.
Fuel Economy & Speed
Processed in your browser
Fuel Economy MPG vs L/100km Converter
Convert automobile fuel economy between Miles per US Gallon (MPG), UK Imperial MPG, Liters per 100 km (L/100km), and km/L.
Bandwidth, Data Rates & Typography
Processed in your browser
Data Storage & Bytes Unit Converter
Convert digital data storage across decimal (SI: KB, MB, GB, TB) and binary (IEC: KiB, MiB, GiB, TiB) standards with exact byte totals.
Bandwidth, Data Rates & Typography
Processed in your browser
Network Transfer Speed Converter
Convert internet and network speeds across bits and bytes (bps, Kbps, Mbps, Gbps, KB/s, MB/s, GB/s).
Length, Weight, Volume & Temperature
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Kitchen & Cooking Measurement Volume Converter
Convert recipe cooking measurements between cups, tablespoons, teaspoons, fluid ounces, milliliters, pints, and liters.
Length, Weight, Volume & Temperature
Processed in your browser
Length & Distance Metric/Imperial Converter
Convert length and distance between Metric and Imperial systems (mm, cm, m, km, inches, feet, yards, miles, nautical miles).
Length, Weight, Volume & Temperature
Processed in your browser
Mass & Weight Kilograms/Pounds Converter
Convert weight and mass between kilograms, pounds (lbs), ounces (oz), grams, stones, and metric tonnes with fractional imperial breakdowns.
Energy, Power, Force & Torque
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Pressure Bar/PSI/Pascal Converter
Convert physical and engineering pressure measurements across Pascals, Bar, PSI, Torr, atmospheres (atm), and Kilopascals.
Energy, Power, Force & Torque
Processed in your browser
Speed & Velocity km/h/mph/knots Converter
Convert velocity and speed between kilometers per hour (km/h), miles per hour (mph), knots, and meters per second (m/s).
Energy, Power, Force & Torque
Processed in your browser
Temperature Celsius/Fahrenheit/Kelvin Calculator
Convert temperature bidirectionally across Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine with physical reference benchmarks.
Energy, Power, Force & Torque
Processed in your browser
Torque Units Converter
Convert rotational mechanical torque between Newton-meters (N·m), foot-pounds (ft-lb), inch-pounds (in-lb), and kgf·m.
Generators & Randomizers
Procedural generators for test data, secure passwords, dummy text, mock avatars, and random numbers.
UUIDs, NanoIDs & CUIDs
Processed in your browser
Software License Key and CD-Key Generator
Generate software product activation serials, CD-keys, and license voucher codes with custom formats and check digits.
Mock Data & Placeholders
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Dummy JSON REST API Mock Payload Generator
Generate realistic nested JSON mock payloads, REST API fixtures, user lists, and product catalogs with customizable counts.
Mock Data & Placeholders
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Creative Company and Brand Name Generator
Generate startup names, SaaS product brands, ecommerce business titles, taglines, and website domain ideas.
Mock Data & Placeholders
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Markdown Documentation Placeholder Generator
Generate structured Markdown documentation placeholder text with headings, tables, code snippets, lists, and callout alerts.
Passwords & Cryptographic Keys
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Random Strong PIN Passcode Generator
Generate cryptographically secure numeric PIN codes, ATM passwords, and MFA backup passcodes with entropy meter.
UUIDs, NanoIDs & CUIDs
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E-Commerce Product SKU & Barcode Token Generator
Create standardized Stock Keeping Unit (SKU) patterns across category, department, season, size, and sequential IDs for mock inventory.
UUIDs, NanoIDs & CUIDs
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Voucher, Promo & Discount Code Batch Generator
Generate bulk batches of unique promotional coupon codes, gift card tokens, and license vouchers with customizable prefixes, separators, and character masks.
Mock Data & Placeholders
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Synthetic Test IBAN & SWIFT/BIC Generator
Generate synthetically compliant test International Bank Account Numbers (IBAN) with MOD-97 check digits and test SWIFT/BIC codes for QA testing.
Random Pickers, Numbers & Dice
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Color Palette Harmony & Contrast Generator
Generate accessible color schemes including complementary, triadic, analogous, and monochromatic palettes with HEX, RGB, and HSL codes.
Random Pickers, Numbers & Dice
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Random Geo-Coordinates & Bounding Box Pin Generator
Generate randomized latitude and longitude coordinates within custom bounding boxes or worldwide regions for map and GIS simulation.
UUIDs, NanoIDs & CUIDs
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Base58 Human-Friendly Identifier Generator
Generate random, non-ambiguous Base58 identifiers excluding visual confusions (0, O, I, l) ideal for short URLs and tokens.
UUIDs, NanoIDs & CUIDs
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Semantic Versioning (SemVer) Release Tag Generator
Generate batches of compliant Semantic Versioning (SemVer 2.0.0) tags across Major, Minor, Patch, alpha, beta, and RC release tracks.
Mock Data & Placeholders
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Synthetic Credit Card Expiry & CVV Mock Generator
Generate future synthetic card expiration dates (MM/YY) and 3/4-digit Card Verification Value (CVV/CVC) codes for checkout QA.
Mock Data & Placeholders
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Synthetic US SSN, EIN & Tax ID Test Generator
Generate synthetically valid, non-issuable US Social Security Numbers (area 900+), Employer Identification Numbers, and ITINs for QA.
UUIDs, NanoIDs & CUIDs
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CUID Collision-Resistant ID Generator
Generate sequential, collision-resistant CUIDs and CUID2 identifiers optimized for horizontal scale and database primary keys.
Mock Data & Placeholders
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Synthetic Vehicle Identification Number (VIN) Generator
Generate 17-character ISO 3779 compliant synthetic Vehicle Identification Numbers (VIN) with mathematically valid check digits.
UUIDs, NanoIDs & CUIDs
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Nano ID & Custom Alphabet Generator
Generate compact, secure, URL-safe NanoIDs with custom alphabet characters, configurable lengths, and batch generation.
Mock Data & Placeholders
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Synthetic Canadian Social Insurance Number (SIN) Generator
Generate synthetically compliant 9-digit Canadian Social Insurance Numbers (SIN) verified by the Luhn MOD-10 algorithm for testing.
UUIDs, NanoIDs & CUIDs
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Random GUID & UUID v4 Batch Generator
Generate up to 500 RFC 4122 compliant UUID version 4 strings with uppercase, lowercase, hyphenless, and URN formatting.
Mock Data & Placeholders
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SQL Database Mock User Seed Data Generator
Generate executable SQL `INSERT INTO users` statements with randomized names, emails, UUIDs, bcrypt password hashes, and timestamps.
Mock Data & Placeholders
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Credit Card Test Number Generator
Generate valid dummy test credit card numbers passing the Luhn algorithm for Visa, Mastercard, Amex, and Discover in dev & QA testing.
Random Pickers, Numbers & Dice
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Random Unassigned Ephemeral Port Number Picker
Select random collision-free TCP/UDP network ports from the IANA dynamic/private range (49152 to 65535) for microservices.
Mock Data & Placeholders
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Dummy Credit Card & Luhn Algorithm Validator
Instantly check credit card checksum validity using the MOD 10 Luhn algorithm, detect card issuer networks, and inspect number formats.
Random Pickers, Numbers & Dice
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Weighted Probability Distribution & Loot Table Simulator
Model custom probability tables (Common, Rare, Epic, Legendary) and simulate thousands of random weighted lottery draws.
Mock Data & Placeholders
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User Profile Mock Data Generator
Generate realistic fake user profiles with full names, emails, addresses, phones, jobs, and avatars in JSON, CSV, and SQL formats.
Passwords & Cryptographic Keys
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EFF Diceware High-Entropy Passphrase Generator
Generate memorable, cryptographically strong passphrases using the Electronic Frontier Foundation (EFF) long wordlist.
Random Pickers, Numbers & Dice
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Random MAC Address Hardware Generator
Generate random network MAC addresses formatted with colons, hyphens, or Cisco dot notation with unicast/multicast control.
Random Pickers, Numbers & Dice
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Random Choice Picker Wheel
Interactive HTML5 Canvas decision wheel and random choice selector with spinning physics, custom labels, and winner announcements.
Passwords & Cryptographic Keys
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Cryptographically Secure Salt Generator
Generate cryptographically secure random salts and entropy bytes in Hex, Base64, and Binary formats using Web Crypto API.
Passwords & Cryptographic Keys
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Strong Memorable Passphrase Generator
Generate cryptographically secure yet human-memorable multi-word passphrases using Diceware randomness and entropy calculations.
SEO & Webmaster Tools
Webmaster utilities for robots.txt generation, XML sitemaps, Open Graph tags, canonical headers, and SERP previews.
Robots.txt & Sitemap Builders
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Search Bot Crawl Rate & Crawl Delay Calculator
Calculate bot request rates, bandwidth consumption, and crawl-delay directives for search engine web spiders.
Robots.txt & Sitemap Builders
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SEO URL Slug & Permalinks Optimizer
Clean, transliterate, and normalize URLs and article slugs by removing stop words and special characters for search-friendly permalinks.
Robots.txt & Sitemap Builders
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XML Sitemap Index & Multi-Sitemap Generator
Generate standardized XML sitemap index files linking child sitemaps with location and lastmod timestamps.
HTTP Headers & Redirects
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Nginx URL Rewrite & 301 Redirect Generator
Generate high-performance Nginx server block rewrite rules and 301 / 302 directives for domain migration and HTTPS.
HTTP Headers & Redirects
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Security.txt RFC 9116 Policy Generator
Generate compliant /.well-known/security.txt vulnerability disclosure files with contact URIs and PGP encryption keys.
Open Graph & Social Cards
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Essential HTML Meta Tags Generator
Generate comprehensive, SEO-optimized HTML meta tags for viewport, robots, author, OpenGraph, Twitter Cards, and theme-color.
Open Graph & Social Cards
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Article & BlogPosting Schema JSON-LD Builder
Generate valid Google Rich Results Schema.org JSON-LD for Articles and BlogPosts with author and publisher metadata.
Open Graph & Social Cards
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FAQPage Schema JSON-LD Generator
Build Google-compliant FAQPage structured data in JSON-LD format with live rich snippet preview.
SERP Snippets & Rich Results
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BreadcrumbList Schema JSON-LD Builder
Generate hierarchical Google Search breadcrumb navigation schema in JSON-LD format with position indexing.
SERP Snippets & Rich Results
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Google SERP Pixel Width & Truncation Tester
Preview exact Google desktop (600px) and mobile search snippet pixel widths with font simulation to prevent title truncation.
Robots.txt & Sitemap Builders
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Robots.txt Generator & Path Tester
Build standard robots.txt directives for search bots and AI crawlers with instant path allow/disallow testing.
Robots.txt & Sitemap Builders
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XML Sitemap Syntax Validator
Validate XML sitemap files against the standard Sitemaps.org protocol, checking URLs, lastmod dates, and priority tags.
HTTP Headers & Redirects
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.htaccess Redirect & Rewrite Generator
Generate Apache .htaccess redirect rules for HTTPS, non-WWW, 301 page redirects, and gzip compression headers.
HTTP Headers & Redirects
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HTTP Status Code Lookup & SEO Guide
Fast searchable lookup dictionary of standard HTTP response codes and their direct impacts on SEO and indexing.
Open Graph & Social Cards
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Canonical & Hreflang Tag Generator
Generate multi-language and international SEO hreflang tags with canonical URLs and x-default fallbacks.
Open Graph & Social Cards
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Keyword Density & Text Analyzer
Analyze word counts, unique terms, keyword density percentages, and multi-word n-grams for on-page SEO.
Open Graph & Social Cards
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Meta Description & Title Pixel Checker
Measure exact typography pixel width of title tags and meta descriptions against Google desktop and mobile boundaries.
Open Graph & Social Cards
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Open Graph & Social Preview Generator
Generate Open Graph and Twitter Card meta tags with live visual mockup cards for Facebook, X/Twitter, and LinkedIn.
SERP Snippets & Rich Results
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Google SERP Snippet Simulator
Simulate how your page title, URL breadcrumb, and meta description look in Google Search on desktop and mobile.
SERP Snippets & Rich Results
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Schema.org JSON-LD Structured Data Generator
Generate Google-compliant Schema.org JSON-LD scripts for Articles, Organizations, SoftwareApps, and FAQPages.
Robots.txt & Sitemap Builders
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Bing & Yandex XML Sitemap Schema Validator
Format and validate XML sitemap feeds against Bing Webmaster Tools and Yandex schema requirements.
Robots.txt & Sitemap Builders
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Google Image XML Sitemap Extension Builder
Generate Google-compliant image sitemaps with <image:image>, <image:loc>, <image:title>, and <image:caption> tags.
HTTP Headers & Redirects
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CORS Preflight HTTP Response Header Builder
Generate server header configurations for Access-Control-Allow-Origin, Methods, Headers, and Max-Age across Apache and Nginx.
HTTP Headers & Redirects
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URL Redirect Chain & Loop Path Analyzer
Trace multi-hop 301/302 redirect paths, detect circular redirect loops, and calculate PageRank link equity dissipation.
Open Graph & Social Cards
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Schema.org LocalBusiness JSON-LD Generator
Create Google rich snippet JSON-LD metadata for local businesses including address, geo-coordinates, telephone, and opening hours.
Open Graph & Social Cards
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E-Commerce Product & Rating Schema.org Builder
Build Google Product rich snippet schema with offer pricing, currency, availability, and aggregate user star ratings.
Open Graph & Social Cards
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Culinary Recipe Rich Snippet Schema.org Generator
Build Google recipe rich results JSON-LD with prep time, cook time, ingredients list, and nutritional calorie counts.
Open Graph & Social Cards
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SEO Friendly URL Slug Cleaner & Stop Words Remover
Convert article titles into clean, concise URL slugs by removing low-value stop words (a, an, the, and, in, for) and punctuation.
SERP Snippets & Rich Results
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Google Featured Snippet (Position Zero) Simulator
Preview paragraph, numbered list, and table Position Zero rich snippets in Google SERP desktop and mobile layouts.
SERP Snippets & Rich Results
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WebSite Sitelinks Searchbox JSON-LD Generator
Construct WebSite schema with potentialAction SearchAction for Google Sitelinks Search Box integration.
Network & Internet Tools
Network diagnostic calculators for IPv4/IPv6 CIDR prefixes, DNS records, cURL commands, and subnet masks.
SPF, DKIM & DMARC Email Security
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DNS Records Builder & Zone File Generator
Generate standardized RFC 1035 DNS zone file records (A, AAAA, CNAME, MX, TXT, SPF, DKIM, DMARC, SRV, CAA) with syntax validation.
SPF, DKIM & DMARC Email Security
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Reverse DNS PTR Record Generator
Convert IPv4 and IPv6 addresses into in-addr.arpa and ip6.arpa reverse lookup zone domain strings and PTR record declarations.
MAC Address OUI & Port Reference
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Ethernet Cable Pinout & Wiring Color Guide
Interactive visual wiring color guide for RJ45 Ethernet termination standards T568A, T568B, straight-through, and crossover network cables.
MAC Address OUI & Port Reference
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MAC Address Format Converter & Normalizer
Normalize and convert physical MAC addresses between colon-separated, hyphenated, Cisco dotted quad, and bare hexadecimal formats.
cURL Builder & CORS Diagnostics
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CORS Headers Configuration Builder
Configure Cross-Origin Resource Sharing (Access-Control-Allow-Origin, Methods, Headers, Max-Age) and generate drop-in server configurations.
cURL Builder & CORS Diagnostics
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SSL/TLS Cipher Suite & Protocol Reference
Interactive reference and compatibility guide for TLS 1.2/1.3 cipher suites, key exchange algorithms, and forward secrecy security levels.
IPv4 & IPv6 Subnetting & CIDR
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IPv4 Wildcard Mask & Cisco ACL Calculator
Convert subnet masks to Cisco wildcard masks (inverse masks) and generate access control list (ACL) network rule statements.
IPv4 & IPv6 Subnetting & CIDR
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MTU & TCP MSS Packet Overhead Calculator
Calculate maximum transmission unit (MTU), TCP maximum segment size (MSS), and encapsulation header overheads for IPv4, IPv6, PPPoE, IPSec, GRE, and WireGuard.
IPv4 & IPv6 Subnetting & CIDR
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Ping Latency & Network Jitter Calculator
Calculate network packet round-trip time (RTT), mean latency, jitter (PDV / RFC 3393), and packet loss percentage from ping logs or manual sample inputs.
SPF, DKIM & DMARC Email Security
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DNS DKIM Public Key Record Syntax Validator
Parse and validate DKIM TXT records (v=DKIM1; k=rsa; p=...) checking RSA key bit-length and selector syntax.
SPF, DKIM & DMARC Email Security
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DNS DMARC Email Security Policy Builder
Build RFC 7489 DMARC DNS TXT records for p=reject, quarantine, or none with aggregate and forensic report mailboxes.
SPF, DKIM & DMARC Email Security
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DNS SPF (Sender Policy Framework) Record Builder
Generate RFC 7208 compliant SPF TXT records with ip4, a, mx, include mechanisms and ~all / -all qualifiers.
MAC Address OUI & Port Reference
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Ethernet Bandwidth & File Transfer Time Estimator
Calculate theoretical and real-world transfer durations across 100Mbps, 1GbE, 2.5GbE, and 10GbE LAN links factoring TCP overhead.
SPF, DKIM & DMARC Email Security
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DNS Record Lookup & Zone Formatter
Parse raw DNS zone files and BIND syntax into structured tables, check record TTL compliance, and generate dig commands.
cURL Builder & CORS Diagnostics
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HTTP Content Security Policy (CSP) Header Builder
Build hardened Content-Security-Policy response headers for default-src, script-src, style-src, and frame-ancestors.
MAC Address OUI & Port Reference
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Bandwidth & Download Transfer Time Calculator
Calculate exact file transfer durations across internet speeds (Fiber, 5G, Starlink, Wi-Fi 6) with real-world packet overhead factors.
cURL Builder & CORS Diagnostics
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HSTS Preload & Strict-Transport-Security Validator
Verify HTTP Strict-Transport-Security (HSTS) headers against official browser preload requirements (max-age, subdomains).
MAC Address OUI & Port Reference
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MAC Address OUI & Vendor Lookup
Look up IEEE Organizationally Unique Identifier (OUI) hardware vendors, manufacturers, and network interface scopes.
cURL Builder & CORS Diagnostics
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TLS SNI & SAN Wildcard Domain Matcher
Test hostnames against Subject Alternative Names (SAN) and wildcard certificate rules (*.example.com) for TLS compliance.
cURL Builder & CORS Diagnostics
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cURL to JavaScript Fetch Code Converter
Convert raw command-line cURL commands into modern JavaScript fetch() requests, Python requests, and PHP code snippets.
IPv4 & IPv6 Subnetting & CIDR
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Synthetic IP Geolocation Test Dataset Generator
Generate mock IP addresses with realistic synthetic country codes, cities, ASNs, and lat/long coordinates for dev testing.
cURL Builder & CORS Diagnostics
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HTTP Status Code Quick Reference
Comprehensive RFC reference guide for HTTP 1xx, 2xx, 3xx, 4xx, and 5xx status codes with caching rules and debugging guidance.
IPv4 & IPv6 Subnetting & CIDR
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IPv4 to IPv6 Transition & 6to4 Address Generator
Compute IPv4-mapped IPv6 (::ffff:x.x.x.x), 6to4 prefix (2002::/16), and hexadecimal dual-stack representations.
cURL Builder & CORS Diagnostics
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URL Parameter & Query String Parser
Parse URLs into protocol, host, pathname, query parameters, and hash with live key-value parameter editing and JSON export.
IPv4 & IPv6 Subnetting & CIDR
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Subnet Mask to CIDR & Wildcard Prefix Converter
Convert IPv4 subnet masks (e.g. 255.255.255.0) to CIDR slash notation (/24), wildcard mask (0.0.0.255), and host capacity.
cURL Builder & CORS Diagnostics
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User-Agent String Parser & Client Detector
Parse User-Agent strings to extract browser family, version, OS platform, device architecture, and rendering engine.
IPv4 & IPv6 Subnetting & CIDR
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IP Range to CIDR Block Calculator
Convert arbitrary start and end IPv4 address ranges into the minimal set of matching CIDR network subnet blocks.
IPv4 & IPv6 Subnetting & CIDR
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IPv4 Subnet & CIDR Range Calculator
Calculate IPv4 network address, broadcast address, usable IP range, CIDR prefix, wildcard mask, and binary representation.
IPv4 & IPv6 Subnetting & CIDR
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IPv6 Address Compressor & Expander
Convert IPv6 addresses between compressed RFC 5952 representation and fully expanded 8-hextet formats with scope classification.
Productivity Tools
Everyday workflow accelerators including Pomodoro timers, meeting cost calculators, checklist builders, and habits.
Task Checklists & Priority Matrix
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Auto-Saving Scratchpad & Quick Notes
Clean, distraction-free markdown scratchpad with instant localStorage auto-save, live word statistics, and 1-click clipboard export.
Meeting Cost & Time Estimators
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Daily Time Block & Productivity Scheduler
Plan your day with visual 24-hour time blocking, category hours breakdowns (Deep Work, Meetings, Admin), and schedule export.
Meeting Cost & Time Estimators
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Meeting Agenda & Timekeeper Planner
Plan structured meeting agendas with minute-by-minute time budgets, visual topic progress bars, and overtime warnings.
Meeting Cost & Time Estimators
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Weighted Pros and Cons Decision Balancer
Evaluate complex decisions by weighing positive and negative arguments on a 1-10 impact scale with instant net score verdicts.
Meeting Cost & Time Estimators
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PERT Task Duration & Uncertainty Estimator
Calculate weighted expected task durations and statistical standard deviation using the three-point PERT estimation formula.
Meeting Cost & Time Estimators
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Weighted Decision Scoring Matrix
Evaluate competing choices and decisions using multi-criteria weighted scoring (MCDA) with visual ranking bars and CSV export.
Focus Timers & Interval Clocks
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Fullscreen Ambient Focus Desk Clock
Distraction-free ambient fullscreen desk clock with seconds toggle, 12h/24h modes, date badges, and ambient dark contrast styles.
Focus Timers & Interval Clocks
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Custom Pomodoro Focus Interval Timer
Customizable Pomodoro timer with flexible focus durations, short breaks, long intervals, round counters, and sound chimes.
Focus Timers & Interval Clocks
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Workday & Business Days Date Calculator
Calculate exact business days between two dates, excluding weekends and customizable company holidays, with billable hours estimates.
Word Count Goals & Reading Pace
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Text Teleprompter & Video Speech Scroller
Fullscreen browser teleprompter with smooth variable speed auto-scrolling, mirror mode for beam-splitter glass, and customizable font size.
Task Checklists & Priority Matrix
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Daily Habit Streak & Bullet Tracker
Visual monthly habit tracker grid. Mark daily habit completions, track current streaks, and analyze completion rates.
Task Checklists & Priority Matrix
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Eisenhower Matrix Decision Prioritizer
Interactive 4-quadrant urgency vs importance decision matrix (Do First, Schedule, Delegate, Eliminate) with local persistence.
Task Checklists & Priority Matrix
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Markdown Task List & Checklist Manager
Fast, local-first Markdown checklist manager with completion toggles, progress bars, and one-click GitHub task export.
Meeting Cost & Time Estimators
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Meeting Cost Financial Calculator
Real-time financial ticker calculating the cumulative dollar cost of business meetings based on attendee count and average salaries.
Meeting Cost & Time Estimators
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SMART Goals Worksheet & Statement Builder
Interactive framework to construct Specific, Measurable, Achievable, Relevant, and Time-bound objectives.
Meeting Cost & Time Estimators
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Work Hours & Timesheet Billing Calculator
Calculate daily and weekly work hours, subtract lunch breaks, track overtime thresholds, and compute total wages.
Focus Timers & Interval Clocks
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Interval Training & Tabata Stopwatch
Configurable high-intensity interval timer with work periods, rest cycles, round countdowns, and audible beep cues.
Focus Timers & Interval Clocks
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Presentation Slide Deck Timer & Pacer
Slide presentation timing assistant. Calculate allotted seconds per slide with audio warning bells at midpoint and finish.
Word Count Goals & Reading Pace
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Reading Time & Speech Pace Calculator
Calculate silent reading duration and spoken presentation delivery times across variable words-per-minute speaking paces.
Word Count Goals & Reading Pace
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Words Per Minute (WPM) Typing Speed Tester
Test and practice keyboard typing speed in real time with net WPM metrics, accuracy percentages, and mistake counters.
Task Checklists & Priority Matrix
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Checklist Builder & Clean Printable Sheet Styler
Design custom interactive checklists, flight checks, and SOPs and print them as clean, borderless PDF sheets.
Task Checklists & Priority Matrix
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Private Offline Kanban Board & Task Tracker
Lightweight, privacy-first drag-and-drop Kanban workflow with To Do, In Progress, and Completed columns saved locally.
Task Checklists & Priority Matrix
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Time Audit Activity Logger & Category Analyzer
Log daily activities in 15-to-60 minute intervals and visualize your time breakdown across productive, admin, and rest buckets.
Meeting Cost & Time Estimators
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Quarterly OKR & Key Results Progress Tracker
Define high-impact Objectives and quantifiable Key Results, calculating weighted completion percentages in real time.
Meeting Cost & Time Estimators
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Deep Work Interruption & Context Switch Cost Calculator
Quantify lost cognitive productivity and recovery time caused by notifications, Slack pings, and office interruptions.
Meeting Cost & Time Estimators
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Meeting ROI & Time-Waste Financial Calculator
Calculate the true financial cost and productivity impact of meetings based on attendees, hourly rates, and outcomes.
Focus Timers & Interval Clocks
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Flow State Pomodoro & Ambient Generator Timer
Work in focused sprints with browser-synthesized ambient white/pink noise and audio interval chimes.
Focus Timers & Interval Clocks
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Circadian Sleep Cycle & Wake Window Calculator
Calculate optimal bedtime or wake-up times aligned with natural 90-minute REM sleep cycles to wake up refreshed.
Focus Timers & Interval Clocks
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Speech & Presentation Pacing Rehearsal Timer
Pace your keynote speeches, talks, and presentations with target section timestamps and words-per-minute alerts.
Word Count Goals & Reading Pace
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Reading Speed (WPM) & Comprehension Pace Tester
Test and benchmark your real reading speed in Words Per Minute (WPM) using standardized test passages.
Statistics & Data Analysis Tools
Statistical calculations for standard deviation, normal distribution, z-scores, hypothesis testing, and regression.
Normal Bell Curve & Probability
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Shapiro-Wilk Sample Normality Test Calculator
Evaluate whether continuous sample observations originate from a normal Gaussian distribution using the Shapiro-Wilk test statistic.
Z-Scores, T-Tests & Confidence Intervals
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Bayes' Theorem Conditional Probability Calculator
Compute updated posterior probability P(A|B) from prior probability P(A), sensitivity/likelihood P(B|A), and false positive rates.
Z-Scores, T-Tests & Confidence Intervals
Processed in your browser
Kruskal-Wallis H Test Non-Parametric ANOVA Calculator
Test for statistically significant differences across three or more independent groups using the non-parametric Kruskal-Wallis H test.
Z-Scores, T-Tests & Confidence Intervals
Processed in your browser
Mann-Whitney U Test Non-Parametric Calculator
Perform the non-parametric Mann-Whitney U test (Wilcoxon rank-sum) for comparing two independent sample distributions.
Z-Scores, T-Tests & Confidence Intervals
Processed in your browser
One-Way ANOVA (F-Statistic) Analysis of Variance Calculator
Compute Between-Group and Within-Group sum of squares, Mean Squares, and the F-ratio statistic for three treatment groups.
Correlation & Regression Analysis
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Geometric & Harmonic Mean Calculator
Calculate Geometric Mean, Harmonic Mean, Arithmetic Mean, and Root Mean Square (RMS) with comparison ratios and application insights.
Correlation & Regression Analysis
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Moving Average (SMA & EMA) Time Series Smoother
Calculate Simple Moving Average (SMA) and Exponential Moving Average (EMA) arrays for time-series datasets with customizable lookback windows.
Correlation & Regression Analysis
Processed in your browser
Z-Score & Standard Normal Score Calculator
Calculate standard normal distribution Z-scores, cumulative probabilities P(Z ≤ z), two-tailed p-values, and percentile rankings.
Mean, Median, Mode & Standard Deviation
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CSV Dataset Column Profiler & Type Inferrer
Inspect CSV and TSV spreadsheets in-browser to determine column data types, completeness percentages, null counts, and distinct value cardinality.
Mean, Median, Mode & Standard Deviation
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Five-Number Summary & Box Plot Calculator
Calculate Minimum, Q1, Median, Q3, Maximum, and IQR with Tukey outlier detection and SVG box-and-whisker visualization.
Mean, Median, Mode & Standard Deviation
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Min-Max Feature Scaler & Normalizer
Normalize numeric arrays to [0, 1] or custom [a, b] ranges for data science, machine learning models, and distance metrics.
Normal Bell Curve & Probability
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Frequency Distribution Table Generator
Group continuous or discrete numerical raw data into frequency bins with relative frequencies, percentages, and cumulative distributions.
Normal Bell Curve & Probability
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Poisson Distribution Probability Calculator
Calculate exact Poisson probabilities P(X = k), cumulative P(X ≤ k), and exceedance rates for rare events and arrival rates.
Z-Scores, T-Tests & Confidence Intervals
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Survey Margin of Error & Sample Size Calculator
Calculate survey margin of error (MOE) and confidence intervals with optional finite population correction (FPC) across 90%, 95%, and 99% levels.
Z-Scores, T-Tests & Confidence Intervals
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Odds Ratio & Relative Risk 2x2 Table Calculator
Calculate Odds Ratio (OR), Relative Risk (RR), and 95% confidence intervals from 2x2 contingency tables for clinical and scientific studies.
Correlation & Regression Analysis
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Linear Regression Trendline Equation Solver
Calculate ordinary least squares line of best fit (y = mx + b), slope, y-intercept, standard error, and make predictions.
Correlation & Regression Analysis
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Pearson Correlation Coefficient Calculator
Calculate Pearson correlation r, R-squared variance explained, t-statistic significance, and Spearman rank coefficient from paired (X, Y) datasets.
Correlation & Regression Analysis
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Exponential Moving Average (EMA) Time-Series Smoother
Compute Exponential Moving Average (EMA) across sequential time-series observations using configurable smoothing multipliers (alpha) or window length.
Mean, Median, Mode & Standard Deviation
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Descriptive Statistics Dataset Calculator
Compute summary metrics including mean, median, mode, standard deviation, variance, skewness, and quartiles from raw numeric data.
Correlation & Regression Analysis
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Spearman's Rank Correlation Coefficient (Rho) Calculator
Compute monotonic non-parametric association between paired variables X and Y using Spearman's Rho rank correlation.
Mean, Median, Mode & Standard Deviation
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Interquartile Range (IQR) & Outlier Detector
Calculate quartiles Q1, median, Q3, IQR, Tukey lower/upper fences, and automatically flag mild and extreme anomalies.
Normal Bell Curve & Probability
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Weibull Distribution Reliability & Failure Rate Calculator
Model time-to-failure engineering reliability, cumulative failure probability, and hazard rates using the 2-parameter Weibull distribution.
Normal Bell Curve & Probability
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Binomial Probability Distribution Calculator
Calculate exact binomial probability P(X = k), cumulative P(X ≤ k), expected value mean, and variance for n Bernoulli trials.
Z-Scores, T-Tests & Confidence Intervals
Processed in your browser
Cohen's d Effect Size & Power Benchmark Calculator
Compute Cohen's d effect size between two independent treatment groups to quantify practical experimental significance beyond p-values.
Normal Bell Curve & Probability
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Normal Distribution Z-Score & Probability Calculator
Calculate Z-scores, left/right tail cumulative probabilities, two-sided intervals, and shaded bell curve normal distributions.
Z-Scores, T-Tests & Confidence Intervals
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Standard Error of the Mean (SEM) Calculator
Calculate the Standard Error of the Mean (SEM) from sample standard deviation and sample size, or compute directly from raw sample data.
Z-Scores, T-Tests & Confidence Intervals
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Chi-Square Goodness-of-Fit Test Calculator
Compute Pearson chi-square statistic (χ²), degrees of freedom, and p-value comparing observed vs expected frequencies.
Z-Scores, T-Tests & Confidence Intervals
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Confidence Interval Mean & Proportion Calculator
Calculate two-sided confidence intervals [Lower, Upper] and margin of error for numerical sample means or survey proportions.
Z-Scores, T-Tests & Confidence Intervals
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Sample Size & Margin of Error Calculator
Determine required survey sample size or calculate margin of error given confidence levels and finite population sizes.
Z-Scores, T-Tests & Confidence Intervals
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Student's t-Test & p-Value Calculator
Perform one-sample, independent two-sample, and paired t-tests with degrees of freedom, p-value, and effect size.
Correlation & Regression Analysis
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Kendall's Tau Non-Parametric Rank Correlation Calculator
Measure ordinal association by counting concordant and discordant pairs to compute Kendall's tau rank correlation coefficient.
Mean, Median, Mode & Standard Deviation
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Root Mean Square Error (RMSE) & MAE Model Evaluator
Evaluate machine learning regression accuracy by computing RMSE, Mean Absolute Error (MAE), and Mean Squared Error (MSE).
Mean, Median, Mode & Standard Deviation
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Fisher-Pearson Skewness & Excess Kurtosis Calculator
Quantify dataset asymmetry (skewness) and tail heaviness / outlier propensity (excess kurtosis) relative to normal distributions.
Mean, Median, Mode & Standard Deviation
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Weighted Arithmetic Mean & Variance Calculator
Calculate weighted arithmetic mean, weighted variance, and effective degrees of freedom across unequally weighted observations.
Normal Bell Curve & Probability
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Hypergeometric Probability Distribution Calculator
Calculate exact hypergeometric probabilities for finite population sampling without replacement (lotteries, card hands, quality inspection).
Audio & Media Tools
In-browser Web Audio API tools for sound generation, frequency analysis, audio editing, and metadata inspection.
Waveform Visualizers & Spectrograms
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Live Audio Peak dBFS & RMS Loudness Meter
Inspect live microphone or audio file peak dBFS, RMS loudness levels, and dynamic range headroom with clipping alerts.
Waveform Visualizers & Spectrograms
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Audio Frequency Spectrogram & Waterfall Visualizer
Visualize audio frequencies over time with a scrolling 2D color waterfall spectrogram and live microphone spectrum analyzer.
Audio Bitrate & Sample Rate
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Audio Bitrate & Lossless FLAC vs WAV Size Calculator
Calculate uncompressed PCM audio data rates, FLAC compression savings, and multi-track recording storage requirements.
Audio Bitrate & Sample Rate
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Audio Sample Rate Conversion Pitch & Drift Calculator
Calculate pitch transposition semitones, playback duration drift, and speed variation between 44.1kHz, 48kHz, 96kHz, and 192kHz sample rates.
Waveform Visualizers & Spectrograms
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Audio Waveform Visualizer & Player
Load local audio files (MP3, WAV, OGG) to render full waveform overviews and animated real-time playback bars.
Tone Generators & Sound Synthesis
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Binaural Beats & Brainwave Tone Generator
Generate pure binaural beats across Alpha, Beta, Theta, and Delta brainwave bands with carrier tone and pink noise blend.
Waveform Visualizers & Spectrograms
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Microphone Frequency Spectrum Monitor
Real-time microphone audio input visualizer. Displays live audio FFT frequency spectrum, dominant pitch note detection, and dB VU meter.
Tone Generators & Sound Synthesis
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DTMF Touch-Tone Keypad & Audio Dial Tone Simulator
Simulate telephone dual-tone multi-frequency (DTMF) keypad signals, IVR navigation tones, and redial sequences in-browser.
Audio Bitrate & Sample Rate
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Audio Bitrate & File Size Calculator
Calculate uncompressed PCM and compressed audio file sizes across sample rates, bit depths, channels, and bitrates.
Tone Generators & Sound Synthesis
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Morse Code Audio Tone Synthesizer & Beeper
Convert text into acoustic Morse code audio tones with adjustable Words Per Minute (WPM), pitch frequency, and Farnsworth timing.
Audio Bitrate & Sample Rate
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Decibel & Sound Pressure Level (SPL) Converter
Convert between sound pressure level (dB SPL), acoustic intensity (W/m²), sound pressure (Pascals), and voltage ratios (dBV, dBu, dBm).
Tone Generators & Sound Synthesis
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Convolver Audio Reverb & Room Acoustics Simulator
Simulate room acoustic reflections and spatial reverb (Small Studio, Concert Hall, Cathedral, Plate) using client-side Web Audio ConvolverNode.
Tone Generators & Sound Synthesis
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Audio Tone & Frequency Generator
Generate pure audio tones and test frequencies (20Hz to 20,000Hz) with sine, square, sawtooth, and triangle waveforms using the Web Audio API.
Metronome, Tuner & BPM Tap Counter
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10-Band Graphic Audio Equalizer & Sound Styler
Adjust audio frequency response using a 10-band Web Audio API graphic equalizer with bass boost, vocal enhance, and acoustic presets.
Tone Generators & Sound Synthesis
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Sound Frequency Sweep Generator (Chirp)
Generate logarithmic and linear audio frequency sweeps from 20Hz to 20,000Hz to test room resonance, subwoofer roll-off, and audio acoustics.
Metronome, Tuner & BPM Tap Counter
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Musical Chord Frequency & Progression Calculator
Calculate exact scientific pitch frequencies (Hz), musical note intervals, and MIDI numbers with interactive piano keyboard playback.
Tone Generators & Sound Synthesis
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White, Pink & Brown Noise Generator
Synthesize procedural acoustic white noise, pink noise (1/f), and brown noise (1/f²) in your browser for focus, sleep, tinnitus relief, and sound masking.
Metronome, Tuner & BPM Tap Counter
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Guitar Tuner & Pitch Pipe Reference
Acoustic pitch pipe and guitar string reference tones for Standard EADGBE, Drop D, DADGAD, and 4-string Bass tuning.
Metronome, Tuner & BPM Tap Counter
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Metronome & BPM Tap Tempo Tool
Precision audio metronome with Web Audio clicks, adjustable time signatures (2/4, 3/4, 4/4, 6/8), accented downbeats, and an interactive tap-tempo BPM detector.
Metronome, Tuner & BPM Tap Counter
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Stereo Panning & Channel Polarity Tester
Test left and right speaker channel separation, center phantom imaging, and phase polarity cancellation.
Waveform Visualizers & Spectrograms
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Audio Silence & Noise Threshold Detector
Scan audio files for quiet and silent intervals below dBFS thresholds with timestamped cues for speech and podcast editing.
Waveform Visualizers & Spectrograms
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Musical Note Pitch & Frequency Calculator
Calculate exact musical note frequencies (C0 to B8), MIDI note numbers, and cents deviation with interactive Web Audio sine wave preview.
Audio Bitrate & Sample Rate
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BPM Tempo to Delay & Reverb Time Calculator
Convert musical tempo (BPM) into exact millisecond delay times, dotted notes, triplets, and reverb pre-delay settings for music production.
Audio Bitrate & Sample Rate
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Podcast & Audio File Size Calculator
Estimate audio storage requirements and bandwidth usage for podcasts and voice tracks based on duration, bitrate, and format.
Audio Bitrate & Sample Rate
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Video Aspect Ratio & Letterbox Padding Calculator
Calculate video resolution dimensions (16:9, 9:16, 1:1, 4:3, 21:9) and compute exact letterbox or pillarbox padding for video editors.
Tone Generators & Sound Synthesis
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Audio Fade-In & Fade-Out Envelope Calculator
Calculate and visualize linear and exponential audio gain envelopes for smooth fade-ins and fade-outs to prevent speaker pop artifacts.
Metronome, Tuner & BPM Tap Counter
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Audio Stereo Channel Matrix & Panner
Simulate audio channel matrix routing: swap left and right channels, isolate mono channels, or test phase polarity cancellation.
Metronome, Tuner & BPM Tap Counter
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Audio Volume Gain Booster & Normalizer
Boost quiet audio files in-browser with Web Audio gain amplification, peak clipping indicators, and target dBFS normalization.
Metronome, Tuner & BPM Tap Counter
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Audio Playback Speed & Pitch Controller
Adjust audio playback speeds from 0.25x to 3.0x with optional pitch-preservation, loop sections, and real-time Web Audio API processing.
Metronome, Tuner & BPM Tap Counter
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Subtitle SRT Timestamp Shifter & Resync
Shift and resynchronize SubRip (.srt) subtitle timestamps forward or backward by custom milliseconds or seconds with 1-click export.