How to use JSON Formatter
What JSON Formatter does#
Paste any JSON to pretty-print it with 2-space, 4-space or tab indentation, or minify it to a single compact line. The formatter validates your input as you type and points out the problem when the JSON is malformed — perfect for cleaning up API responses, config files and logs. Everything runs in your browser, so your data is never uploaded.
How to use it#
- Open the tool and paste or type your input.
- Choose the options you want.
- See the result instantly, updated as you work.
- Copy it to your clipboard in one click.
Your privacy#
JSON Formatter runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.
Frequently asked questions
Is JSON Formatter free to use?
Yes. JSON Formatter is completely free and needs no account or sign-up.
Is my data private?
Yes. JSON Formatter works entirely in your browser, so your data never leaves your device.
Do I need to install anything?
No. JSON Formatter runs online in any modern browser, on desktop or mobile.