Free Online Developer & Text Tools
12 powerful tools that run entirely in your browser. No data is sent to any server. No sign-up required.
Developer Tools
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JSON Formatter / Validator
Format, validate, and beautify JSON data instantly
B64
Base64 Encoder / Decoder
Encode and decode Base64 strings, files, and images
JWT
JWT Decoder
Decode and inspect JSON Web Tokens instantly
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URL Encoder / Decoder
Encode and decode URLs with percent-encoding
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Regex Tester
Test regular expressions with real-time matching
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Hash Generator
Generate MD5, SHA-1, SHA-256, and other hashes
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Text Diff Checker
Compare two texts and find differences
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Color Picker / Converter
Pick colors and convert between HEX, RGB, HSL formats
Text Tools
Your Privacy Matters
All tools process data entirely in your browser. Nothing is uploaded to any server. Your data stays on your device.