Format JSON, encode and decode, hash text, test regex and pick colors — all in your browser.
Base64 Encode / DecodeEncode text or files to Base64, or decode Base64 back to text — with full Unicode support.Color ConverterConvert colors between HEX, RGB and HSL, pick from a color wheel, and get shades, tints and contrast ratios.Hash GeneratorCompute MD5, SHA-1, SHA-256 and SHA-512 hashes of text or files, entirely in your browser.JSON Formatter & ValidatorPretty-print, validate and minify JSON. Errors are reported with the exact line and position.Regex TesterTest regular expressions against sample text with live highlighting, match details, capture groups and replace.URL Encode / DecodePercent-encode text for use in URLs, or decode an encoded URL back to readable text. Also parses query strings.UUID GeneratorGenerate one or thousands of random version-4 UUIDs (GUIDs) with cryptographic randomness.