Developer tools
Free online developer tools: JSON, YAML and CSV converters, regex tester, diff checker, hash and UUID generators, JWT decoder, cron explainer, chmod and htpasswd generators, Base64, QR codes and more.
{ }JSON FormatterFormat, validate, minify and sort JSON.B64Base64 Encode / DecodeEncode text or files to Base64 and decode it back.%20URL Encode / DecodePercent-encode or decode URLs and query strings.QRQR Code GeneratorCreate QR codes for links and text, download PNG or SVG.***Password GeneratorGenerate strong random passwords with custom length.HEXColor ConverterConvert colors between HEX, RGB, HSL and CMYK.TSUnix Timestamp ConverterConvert Unix epoch time to a date and back.#Hash GeneratorMD5, SHA-1, SHA-256, SHA-512 and CRC32 of text or files.UUIDUUID GeneratorGenerate v4 and v7 UUIDs in bulk, and decode any UUID.JWTJWT DecoderDecode JSON Web Tokens and verify HS, RS, PS and ES signatures.cronCron Expression GeneratorExplain any cron schedule in plain English and see next runs..*Regex TesterTest regular expressions with live highlighting and groups.755Chmod CalculatorConvert Linux permissions between octal and rwx notation.YMLYAML to JSON ConverterConvert YAML to JSON and validate YAML syntax.JSONJSON to YAML ConverterConvert JSON to clean, readable YAML.CSVCSV to JSON ConverterConvert CSV to a JSON array, with types and delimiter detection.CSVJSON to CSV ConverterTurn a JSON array into CSV for Excel, flattening nested fields.±Diff CheckerCompare two texts or configs and highlight the differences.AUTHhtpasswd GeneratorCreate bcrypt or APR1 password lines for Apache and nginx.404HTTP Status CodesEvery common HTTP status code explained, with fixes.