Developer Tools

Format, decode, generate, and test — nothing you paste here ever leaves your browser.

• JSON Formatter & ValidatorFormat, validate, and beautify JSON instantly in your browser.
• JSON to XML ConverterConvert JSON to XML and back, entirely in your browser.
• Base64 Encoder / DecoderEncode or decode Base64 text instantly, entirely client-side.
• JWT DecoderDecode a JSON Web Token's header and payload in your browser.
• URL Encoder / DecoderPercent-encode or decode URLs and query strings instantly.
• Regex TesterTest regular expressions against sample text with live match highlighting.
• UUID GeneratorGenerate RFC 4122 v4 UUIDs instantly in your browser.
• Hash Generator (MD5 / SHA)Generate MD5, SHA-1, SHA-256, or SHA-512 hashes instantly.