JSON formatter
Validate, beautify or minify
Validate, beautify or minify JSON with clear error reporting. Pretty-print a messy payload for reading or minify it for shipping — all in your browser.
How it works
- Open the tool and add your file (or paste your text).
- Adjust the options — everything previews instantly.
- Download the result. Done.
Private by design
This tool runs 100% in your browser. Your files are never uploaded to a server, never stored, and never seen by anyone — close the tab and nothing remains.
Free, no limits
No account, no watermarks, no daily caps. If you also need full design tools, the Ijodly editor is one click away.
Frequently asked questions
Is JSON formatter free to use?
Yes — JSON formatter is completely free. There is no account to create, no watermark on your results and no daily limits.
Are my files uploaded when I use JSON formatter?
No. JSON formatter runs entirely in your browser. Your files never leave your device and nothing is stored on a server — close the tab and nothing remains.
Do I need to install anything or sign up?
Neither. Open the page, use JSON formatter straight away and download your result. No install, no signup.