Developer
Format, convert, and explain text on this device.
What you can do
- Format JSON, convert CSV, and encode Base64 or a URL.
- Decode a JWT header and payload, generate UUIDs, and test a regex.
- Explain a five-field cron expression or a Unix timestamp.
- JSON formatterPretty-print, minify, or sort keys, and show the parse error if the JSON is bad.
- CSV and JSONConvert between CSV and JSON without breaking commas inside quotes.
- Base64Encode or decode text and small files as standard or URL-safe Base64.
- URL encode and decodeEncode a component, or a whole string, and decode percent-escapes.
- JWT decoderShow the header and payload of a JSON Web Token. The signature is not checked.
- UUID v4Generate version-4 UUIDs with crypto.randomUUID.
- Regex testerTry a pattern, list matches and groups, and replace.
- Cron explainerDescribe a five-field cron expression and list the next five local run times.
- Unix timestampConvert seconds or milliseconds to a date, and a date or ISO string back to unix time.