Paste your JSON to validate, format, and syntax-highlight it instantly. 100% client-side.
Formatted JSON will appear here...
This free online JSON formatter helps developers quickly validate and beautify JSON data. Features include:
Paste your JSON into the input box, select your preferred indentation (2 spaces, 4 spaces, or tabs), and click Format. The tool instantly validates and beautifies your JSON with syntax highlighting.
Yes. The formatter first validates your JSON using the browser's native JSON parser. If there are syntax errors, it displays the exact error message and position to help you fix the issue.
Yes. Click the Minify button to compress your JSON by removing all unnecessary whitespace, producing the most compact representation.