JSON Formatter
Format, validate, and minify JSON instantly in your browser. Clear error messages, nothing uploaded.
How to use the JSON Formatter
Paste JSON and press Format to pretty-print it, or Minify to strip whitespace. If the JSON is invalid, you'll get the exact error message. Everything runs locally — safe for sensitive data.
Options
- Indent — 2 spaces, 4 spaces, or tabs.
- Sort keys — alphabetize every object's keys.