Developer Tools

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.