Free Developer Tools
Fast, free, privacy-first utilities that run entirely in your browser. No data leaves your machine.
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JSON Formatter
Format, validate, and minify JSON with syntax highlighting
B64
Base64 Encoder/Decoder
Encode and decode Base64 strings instantly
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URL Encoder/Decoder
Encode and decode URL components
#id
UUID Generator
Generate random v4 UUIDs in bulk
#h
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes
JWT
JWT Decoder
Decode and inspect JSON Web Tokens
🎨
Color Converter
Convert between HEX, RGB, and HSL color formats
/.*/
Regex Tester
Test regular expressions with live matching and capture groups
Aa
Lorem Ipsum Generator
Generate placeholder text for designs and mockups
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Diff Checker
Compare two texts side-by-side and see differences