Fast, free tools for developers.
Format JSON, decode JWTs, encode Base64, generate UUIDs, convert timestamps and more — instantly in your browser.
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JSON Formatter & Validator
Format, validate and minify JSON instantly in your browser.
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Security
JWT Decoder
Decode JWT headers and payloads without sending your token to a server.
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Encoding
Base64 Encoder / Decoder
Encode and decode Base64 text with full UTF-8 support.
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Generators
UUID Generator
Generate secure random UUID v4 identifiers instantly.
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Converters
Unix Timestamp Converter
Convert Unix timestamps and dates between readable and Unix formats.
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