How to use the JSON formatter
- Paste your JSON into the box.
- Beautify to indent it, or Minify to compress it.
- Invalid JSON shows a clear error so you can fix it.
Why format JSON?
Beautified JSON is far easier to read and debug, while minified JSON is smaller for faster transfer in APIs and config files. Validating catches missing commas, brackets and quotes before they break your code.
Frequently asked questions
Is my data uploaded?
No — formatting and validation happen entirely in your browser.
Is it free?
Yes, completely free with no sign-up.