Developer Tools
Format, encode, hash, test and convert — JSON, regex, Base64, JWT, Markdown, plus color and CSS helpers. All on one page.
Text & Code
JSON FormatterPretty-print, validate, minifyBase64Encode / decode text ↔ Base64URL EncodePercent-encode for URLsHashSHA-1/256/384/512 of any textJWT DecoderDecode a token's header & payloadCase ConvertercamelCase, snake_case, Title…Word CounterWords, characters, reading timeNumber BaseBin · Oct · Dec · HexTimestampUnix ↔ human dateLorem IpsumPlaceholder text generatorMarkdown PreviewLive Markdown → HTML, copy outCSV ↔ JSONConvert between CSV and JSONText DiffCompare two texts line by lineRegex TesterTest patterns with live matches