Free online tool
JSON Formatter
Format, minify, and validate JSON snippets without sending your data to a server.
How to use JSON Formatter
- Paste or enter your content in the tool above.
- Choose the action you need, such as format, convert, count, or generate.
- Review the output and copy, print, or save it from your browser.
FAQ
Can this fix invalid JSON?
It reports parsing errors so you can find the problem. It does not guess missing syntax.
Is JSON sent anywhere?
No. Formatting and validation run locally in the browser.