Developer Tools
Browse all free developer utilities. Everything runs in your browser.
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JSON Formatter
Format, validate, and minify JSON data with syntax highlighting and error detection.
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JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload, and expiration info.
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UUID Generator
Generate cryptographically secure UUID v4 values. Single or bulk generation.
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Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text. Supports UTF-8.
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SQL Formatter
Format and beautify SQL queries with configurable indentation and keyword casing.
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