All Tools Directory

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 Processed in your browser

Find and Replace

Search and replace words or patterns in text using plain text or regular expressions.

Text Cleaning Processed in your browser

Remove Duplicate Lines

Remove duplicate lines from text lists, trim empty whitespace, and sort results alphabetically.

Text Transformations Processed in your browser

Text Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case instantly.

Text Analysis Processed in your browser

Readability & Flesch-Kincaid Score Calculator

Calculate Flesch Reading Ease, Grade Level, and sentence complexity breakdown.

Text Analysis Processed in your browser

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 Processed in your browser

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 Processed in your browser

Text Line Numberer, Prefix & Trimmer

Number text lines, trim leading/trailing whitespace, and add custom line prefixes and suffixes.

Text Transformations Processed in your browser

Universal Case Converter (Camel, Pascal, Kebab, Snake)

Convert text simultaneously between camelCase, PascalCase, kebab-case, snake_case, and CONSTANT_CASE.

Text Transformations Processed in your browser

NATO Phonetic & Morse Alphabet Converter

Spell words accurately using the official NATO aviation phonetic alphabet and Morse code.

Text Transformations Processed in your browser

Upside-Down & Inverted Text Generator

Flip text upside down and backwards using Unicode character mapping.

Text Transformations Processed in your browser

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 Processed in your browser

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 Processed in your browser

Text Reverser & Upside-Down Flipper

Reverse text characters, invert word orders, reverse line sequences, and flip text upside-down with Unicode symbols.

Text Cleaning Processed in your browser

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 Processed in your browser

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 Processed in your browser

URL, Link & Domain Extractor

Extract all HTTP/HTTPS links, domains, and email addresses from raw text, code, or unstructured markdown.

Text Cleaning Processed in your browser

Line Break Remover & Paragraph Formatter

Remove unwanted newlines, fix broken paragraphs from PDF copies, and replace line breaks with spaces or commas.

Text Transformations Processed in your browser

ASCII Flowchart & Box-Drawing Tool

Create beautiful Unicode & ASCII flowcharts, network architecture diagrams, and bordered boxes for READMEs and code comments.

Text Cleaning Processed in your browser

HTML Tag Stripper & Text Extractor

Remove HTML tags, script blocks, and styling to extract clean plain text and paragraphs from web markup.

Text Analysis Processed in your browser

Email & Phone Number Extractor

Scan unstructured text and extract all unique email addresses and phone numbers into clean lists.

Text Transformations Processed in your browser

ASCII Art Text Banner Generator

Convert plain text into retro ASCII banner art and block headlines for code comments and README files.

Text Transformations Processed in your browser

Variable Case & Slug Converter

Convert strings between kebab-case, snake_case, camelCase, PascalCase, CONSTANT_CASE, and dot.case.

Text Analysis Processed in your browser

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.

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 Processed in your browser

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 Processed in your browser

Semantic Versioning (SemVer) Range Comparator

Test package versions against SemVer range constraints (^, ~, >=) and compare releases.

General Developer Utilities Processed in your browser

URL Query Parameter Parser & Reconstructor

Breakdown complex URLs into editable key-value tables and reconstruct clean query URLs.

General Developer Utilities Processed in your browser

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.

Developer Generators Processed in your browser

URL Slug Generator & Permalink Formatter

Convert headlines, article titles, and strings into clean, SEO-optimized URL slugs and permalinks in real time.

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 Processed in your browser

Lorem Ipsum Dummy Text Generator

Generate placeholder dummy text, paragraphs, words, sentences, and HTML-tagged lists instantly.

Developer Generators Processed in your browser

Audio Decibel (dB) Sound Level Meter

Real-time acoustic sound level meter measuring ambient noise decibels (dB SPL) via microphone input.

Developer Generators Processed in your browser

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 Processed in your browser

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 Processed in your browser

Binaural Beats Stereo Brainwave Generator

Synthesize dual-ear stereo frequency differentials for Alpha, Beta, Theta, and Delta brainwave focus and relaxation.

Markdown Tools Processed in your browser

Markdown Table Generator

Visual spreadsheet table builder with column alignment, CSV/Excel import, and instant Markdown / HTML export.

Developer Generators Processed in your browser

BPM Tap Tempo Beat Counter

Calculate musical Beats Per Minute (BPM) and tempo by tapping along to any rhythm or song.

Developer Generators Processed in your browser

DTMF Telephone Keypad Sound Tone Dialer

Dual-Tone Multi-Frequency (DTMF) telephone keypad sound synthesizer with custom string sequence dialing.

Developer Generators Processed in your browser

Morse Code Audio Synthesizer & Visual Flasher

Translate plain text into International Morse code with live audio beeps and visual flashlight signals.

Developer Generators Processed in your browser

Morse Code Audio CW Translator & Decoder

Bidirectional Morse code translator with Web Audio API sound playback and light flash.

Developer Generators Processed in your browser

Online Metronome & Tempo Trainer

Precision Web Audio metronome with visual pendulum beat display, accent clicks, and time signatures.

Developer Generators Processed in your browser

Pomodoro Focus Timer & Work Interval Tracker

Boost productivity with customizable Pomodoro intervals (25m work, 5m break) and audio notifications.

Developer Generators Processed in your browser

Cryptographic Random Number & Tabletop Dice Roller

Roll tabletop RPG dice (d4, d6, d8, d10, d12, d20, d100) or generate secure random integers.

Developer Generators Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Speech-to-Text Voice Dictation & Audio Transcriber

Real-time microphone speech-to-text voice recognition dictation with word count and text copy.

Developer Generators Processed in your browser

High-Precision Millisecond Stopwatch & Lap Timer

Precision millisecond stopwatch with split lap timing, fastest/slowest lap tracking, and export.

Developer Generators Processed in your browser

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 Processed in your browser

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 Processed in your browser

HTML Minifier & Code Compressor

Minify and compress HTML markup by stripping comments, extra spaces, and redundant whitespace with live byte savings calculation.

Developer Generators Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

CSS Triangle Generator & Shape Builder

Generate pure CSS triangles using transparent borders or clip-path with customizable directions, sizes, and colors.

Developer Generators Processed in your browser

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 Processed in your browser

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 Processed in your browser

JavaScript String Obfuscator & Hex Encoder

Obfuscate strings and sensitive text into JavaScript Hex escapes, Unicode, charCode arrays, and Base64 eval wrappers.

General Developer Utilities Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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.

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 & 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 (&quot;, &amp;), decimal (&#39;), 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 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.

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 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.

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.

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.

Finance & Loans Processed in your browser

Tip & Multi-Person Bill Splitter

Calculate tip percentages and split restaurant bills evenly or 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 Processed in your browser

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 Processed in your browser

Pressure Unit Converter

Convert pressure across Pascals (Pa), Bar, PSI, Standard Atmosphere (atm), and mmHg.

Unit Converters Processed in your browser

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.

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

CSV Delimiter & Separator Converter

Convert structured tabular data between Comma (,), Semicolon (;), Tab (TSV), Pipe (|), and Colon delimiters.

CSV & Delimited Data Processed in your browser

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.

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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.

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 Processed in your browser

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 Processed in your browser

Markup vs Margin Profit Calculator

Convert bidirectionally between markup percentage, gross profit margin, cost of goods sold (COGS), and final selling price.

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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.

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 Processed in your browser

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 Processed in your browser

Creative Company and Brand Name Generator

Generate startup names, SaaS product brands, ecommerce business titles, taglines, and website domain ideas.

Mock Data & Placeholders Processed in your browser

Markdown Documentation Placeholder Generator

Generate structured Markdown documentation placeholder text with headings, tables, code snippets, lists, and callout alerts.

Passwords & Cryptographic Keys Processed in your browser

Random Strong PIN Passcode Generator

Generate cryptographically secure numeric PIN codes, ATM passwords, and MFA backup passcodes with entropy meter.

UUIDs, NanoIDs & CUIDs Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

CUID Collision-Resistant ID Generator

Generate sequential, collision-resistant CUIDs and CUID2 identifiers optimized for horizontal scale and database primary keys.

Mock Data & Placeholders Processed in your browser

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 Processed in your browser

Nano ID & Custom Alphabet Generator

Generate compact, secure, URL-safe NanoIDs with custom alphabet characters, configurable lengths, and batch generation.

Mock Data & Placeholders Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

EFF Diceware High-Entropy Passphrase Generator

Generate memorable, cryptographically strong passphrases using the Electronic Frontier Foundation (EFF) long wordlist.

Random Pickers, Numbers & Dice Processed in your browser

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 Processed in your browser

Random Choice Picker Wheel

Interactive HTML5 Canvas decision wheel and random choice selector with spinning physics, custom labels, and winner announcements.

Passwords & Cryptographic Keys Processed in your browser

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 Processed in your browser

Strong Memorable Passphrase Generator

Generate cryptographically secure yet human-memorable multi-word passphrases using Diceware randomness and entropy calculations.

Robots.txt & Sitemap Builders Processed in your browser

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 Processed in your browser

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 Processed in your browser

XML Sitemap Index & Multi-Sitemap Generator

Generate standardized XML sitemap index files linking child sitemaps with location and lastmod timestamps.

HTTP Headers & Redirects Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

FAQPage Schema JSON-LD Generator

Build Google-compliant FAQPage structured data in JSON-LD format with live rich snippet preview.

SERP Snippets & Rich Results Processed in your browser

BreadcrumbList Schema JSON-LD Builder

Generate hierarchical Google Search breadcrumb navigation schema in JSON-LD format with position indexing.

SERP Snippets & Rich Results Processed in your browser

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 Processed in your browser

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 Processed in your browser

XML Sitemap Syntax Validator

Validate XML sitemap files against the standard Sitemaps.org protocol, checking URLs, lastmod dates, and priority tags.

HTTP Headers & Redirects Processed in your browser

.htaccess Redirect & Rewrite Generator

Generate Apache .htaccess redirect rules for HTTPS, non-WWW, 301 page redirects, and gzip compression headers.

HTTP Headers & Redirects Processed in your browser

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 Processed in your browser

Canonical & Hreflang Tag Generator

Generate multi-language and international SEO hreflang tags with canonical URLs and x-default fallbacks.

Open Graph & Social Cards Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Bing & Yandex XML Sitemap Schema Validator

Format and validate XML sitemap feeds against Bing Webmaster Tools and Yandex schema requirements.

Robots.txt & Sitemap Builders Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

WebSite Sitelinks Searchbox JSON-LD Generator

Construct WebSite schema with potentialAction SearchAction for Google Sitelinks Search Box integration.

SPF, DKIM & DMARC Email Security Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

MAC Address OUI & Vendor Lookup

Look up IEEE Organizationally Unique Identifier (OUI) hardware vendors, manufacturers, and network interface scopes.

cURL Builder & CORS Diagnostics Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

IPv6 Address Compressor & Expander

Convert IPv6 addresses between compressed RFC 5952 representation and fully expanded 8-hextet formats with scope classification.

Task Checklists & Priority Matrix Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Eisenhower Matrix Decision Prioritizer

Interactive 4-quadrant urgency vs importance decision matrix (Do First, Schedule, Delegate, Eliminate) with local persistence.

Task Checklists & Priority Matrix Processed in your browser

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 Processed in your browser

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 Processed in your browser

SMART Goals Worksheet & Statement Builder

Interactive framework to construct Specific, Measurable, Achievable, Relevant, and Time-bound objectives.

Meeting Cost & Time Estimators Processed in your browser

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 Processed in your browser

Interval Training & Tabata Stopwatch

Configurable high-intensity interval timer with work periods, rest cycles, round countdowns, and audible beep cues.

Focus Timers & Interval Clocks Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Reading Speed (WPM) & Comprehension Pace Tester

Test and benchmark your real reading speed in Words Per Minute (WPM) using standardized test passages.

Normal Bell Curve & Probability Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Descriptive Statistics Dataset Calculator

Compute summary metrics including mean, median, mode, standard deviation, variance, skewness, and quartiles from raw numeric data.

Correlation & Regression Analysis Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Weighted Arithmetic Mean & Variance Calculator

Calculate weighted arithmetic mean, weighted variance, and effective degrees of freedom across unequally weighted observations.

Normal Bell Curve & Probability Processed in your browser

Hypergeometric Probability Distribution Calculator

Calculate exact hypergeometric probabilities for finite population sampling without replacement (lotteries, card hands, quality inspection).

Waveform Visualizers & Spectrograms Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

Stereo Panning & Channel Polarity Tester

Test left and right speaker channel separation, center phantom imaging, and phase polarity cancellation.

Waveform Visualizers & Spectrograms Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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 Processed in your browser

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.

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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.

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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.

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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.

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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.