The JSON Formatter / Validator format, validate, and minify json. It runs entirely in your browser — nothing is sent to a server.
Steps
- Paste or type your text in the Input box above.
- Click Run JSON Formatter / Validator (or use the Load sample button to try it first).
- Copy the result with one click.
Tips
- Your text stays on your device. We never upload or store it.
- The tool works offline once the page has loaded.
- Need to do this often? Bookmark this page and come back anytime.
About the JSON Formatter / Validator
Pretty-print, validate, and minify JSON. Indentation is configurable. Useful for debugging and cleaning up API responses.