How to use
- Paste JSON into the input area.
- Choose Format or Minify mode.
- Click Run to see formatted output.
Examples
- Pretty-print a minified API response.
- Validate JSON configuration before deploying.
JSON Formatter
Format, validate, and inspect JSON with clear parse errors.
- Runs in your browser
- No account
- Clear output
FAQ
Is JSON Formatter and Validator free to use?
Yes. The page is designed as a free, lightweight utility with non-intrusive ads instead of accounts or paywalls.
Does this tool upload my files or text?
No. The core work runs in your browser, so files and text do not need to leave your device. See the privacy page for broader site details.