JSON Formatter

Validate, format, and minify JSON with error highlighting

Indent

Sort keys

Input JSON

Output

Enter JSON and click Format or Minify

All processing happens locally in your browser. No data is sent to any server.

JSON Formatter FAQ

How do I format JSON online?

Paste JSON and click format. You can choose indentation and sort keys.

Will invalid JSON be detected?

Yes, validation errors include location details when available.