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Developer Tools

Encoding, hashing, JWT decoding, JSON formatting, and more.

Encoder/DecoderBase64, URL, HTML entity encoding.

JWT DecoderDecode and inspect JWT tokens.

JSON ToolsFormat, minify, and validate JSON.

Hash GeneratorSHA-1, SHA-256, SHA-384, SHA-512.

UUID GeneratorGenerate and validate UUIDs (v4).

Timestamp ConverterUnix timestamp ↔ date conversion.

Regex TesterTest and debug regular expressions.

Color ConverterHEX, RGB, HSL, OKLCH color conversion.

URL ParserParse and build URLs with query params.

Markdown PreviewLive markdown-to-HTML preview.

Diff ViewerCompare text and highlight differences.

QR Code GeneratorGenerate QR codes from text or URLs.

CSS Unit ConverterConvert between px, rem, em, vw, vh, %.