JSON Formatter
Beautify, minify and validate JSON with clear error messages.
100% private - files never leave your browser
Loading tool…
Clean up and check JSON in seconds. Paste raw or messy JSON to pretty-print it with proper indentation, minify it to a single line, or validate it - with a clear message pointing out syntax errors. It is perfect for API responses, config files and debugging. All parsing happens in your browser, so your data stays private.
How to use JSON Formatter
- 1
Paste your JSON into the editor.
- 2
Choose Beautify, Minify or Validate.
- 3
Copy the formatted output.
Frequently asked questions
Yes. If the JSON is invalid, you get a clear error message so you can fix it quickly.