Free Developer Utilities
Fast, free, no-frills tools for developers. No ads, no tracking, just tools that work.
JSON Formatter
Format, validate, and minify JSON
Base64 Encoder/Decoder
Encode and decode Base64 strings
URL Encoder
URL encode and decode strings
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
JWT Decoder
Decode and inspect JWT tokens
UUID Generator
Generate UUIDs v1, v4
SQL Formatter
Format and beautify SQL queries
Regex Tester
Test regular expressions
Color Converter
Convert between HEX, RGB, HSL
Cron Builder
Build and validate cron expressions