JSON Formatter & Validator

A JSON Formatter takes raw JSON data and formats it with proper indentation and line breaks, making it easy to read and debug.

Paste your JSON, click Format to beautify with indentation, or click Minify to compress into a single line. Errors are highlighted automatically.

Yes, completely free with no registration.

All formatting and validation happens in your browser. No data is transmitted.

Yes! The tool automatically validates your JSON and shows detailed error messages with line numbers if the JSON is invalid.