Developer tools
Formatters and validators for JSON, XML, SQL and YAML, Base64 and URL encoders, JWT decoder, regex tester, hash generator, UUID and password generators, timestamp and colour converters. Everything runs locally, which matters when you paste tokens or production data.
- Base64 Encode & DecodeEncode text to Base64 or decode Base64 to text (UTF-8 safe).
- URL Encode & DecodePercent-encode or decode URLs and query strings.
- HTML Entity Encoder & DecoderEscape and unescape HTML special characters.
- JSON to CSV ConverterConvert JSON arrays to CSV for Excel, and CSV back to JSON.
- CSV to JSON ConverterConvert CSV spreadsheets into JSON arrays.
- JSON to YAML ConverterConvert JSON to YAML and YAML to JSON.
- XML FormatterPretty-print, validate and minify XML.
- SQL FormatterBeautify SQL queries for many dialects.
- JSON Formatter & ValidatorFormat, validate, minify and explore JSON as a tree.
- Regex TesterTest JavaScript regular expressions with live highlighting.
- Hash GeneratorMD5, SHA-1, SHA-256, SHA-512 of text or files.
- JWT DecoderDecode JSON Web Tokens and inspect claims and expiry.
- Markdown to HTMLLive Markdown preview and HTML export.
- UUID GeneratorGenerate v4 and v7 UUIDs in bulk.
- Password GeneratorStrong random passwords and memorable passphrases.
- Unix Timestamp ConverterConvert Unix epoch time to dates and back.
- Color ConverterConvert HEX, RGB, HSL, HSV, CMYK and OKLCH.
- Number Base ConverterBinary, octal, decimal and hexadecimal conversion.