The developer toolkit
you actually need.
Format, convert, generate, and test — fast, free, and right in your browser.
JSON Formatter
Format, validate, and minify JSON with syntax highlighting
Code Beautifier
Format and beautify JavaScript, TypeScript, HTML, and CSS code
Color Palette Generator
Generate beautiful color palettes with HEX, RGB, and HSL values
Regex Tester
Test regular expressions with live matching and explanation
Base64 Encoder/Decoder
Encode and decode text to and from Base64 format
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text
UUID Generator
Generate UUIDs in v1 and v4 formats with copy functionality
Timestamp Converter
Convert between Unix timestamps and human-readable dates
Credit Card Generator
Generate fake credit card numbers for testing and development
JWT Decoder
Decode, inspect, and generate JSON Web Tokens
API Request Tester
Test HTTP API endpoints with custom headers and body
SQL Formatter
Format SQL queries with proper indentation and syntax highlighting
Image to Base64
Convert images to Base64 string or Data URL format for embedding
URL Encoder / Decoder
Encode and decode URLs and query strings
Slug Generator
Generate SEO-friendly URL slugs from text
Cron Expression Generator
Build, validate, and understand cron expressions for schedulers
UUID Validator & Analyzer
Validate, analyze, and inspect UUID strings for databases and APIs
Lorem Ipsum Generator
Generate placeholder text for UI development and prototyping
Password Strength Checker
Analyze password security with entropy calculation and crack time estimation
Curl to Fetch Converter
Convert cURL commands to JavaScript Fetch, Axios, Python, and more
Image Color Picker
Extract precise pixel colors from images with HEX, RGB, HSL values and Tailwind matching
Bulk Image Resizer
Resize and compress multiple images efficiently with batch processing and ZIP export
Image Format Converter
Convert images between PNG, JPEG, and WebP formats with batch processing
HTML/CSS/JS Minifier
Minify or beautify HTML, CSS, and JavaScript code with size statistics
Advanced Difference Checker
Compare text, code, JSON or files with a powerful diff viewer similar to GitHub
Text Case Converter
Convert text between different casing formats instantly
Character Counter
Count characters, words, sentences, and analyze text statistics instantly
Remove Duplicate Lines
Remove duplicate lines from text instantly for cleaner data and lists
JSON ↔ CSV Converter
Convert JSON to CSV or CSV to JSON instantly with bidirectional support
JSON ↔ YAML Converter
Convert JSON to YAML or YAML to JSON instantly with bidirectional support
JSON ↔ TypeScript Converter
Convert JSON to TypeScript interfaces or generate JSON from TypeScript definitions
Markdown Previewer
Write Markdown and instantly preview the rendered HTML output in real-time