Developer Tools
Free, fast, and private. No ads, no tracking, no server-side processing. Everything runs in your browser.
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting
Base64 Encoder/Decoder
Encode and decode Base64 strings instantly
Cron Expression Parser
Parse and explain cron expressions in human-readable format
JWT Decoder
Decode and inspect JSON Web Tokens (JWT) — header, payload, and signature
URL Encoder/Decoder
Encode and decode URL components and query strings
UUID Generator
Generate UUID v4 (random) and v7 (time-sortable) identifiers
Unix Timestamp Converter
Convert Unix timestamps to dates and vice versa
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from text
Password Generator
Generate strong random passwords and XKCD-style memorable passphrases
Text Diff Checker
Compare two texts and find differences line by line
Regex Tester
Test and debug regular expressions with real-time matching and highlighting
Color Converter
Convert colors between HEX, RGB, and HSL with contrast checker