No. Processing runs locally in your browser, so your files and text do not leave your device.

How do I format JSON?

Follow the steps above to format JSON. The result is generated directly in your browser.

Yes. It is free to use with no signup.

Can I use it on mobile?

Yes. The interface works on modern mobile browsers, tablets, and desktop browsers.

Large inputs depend on your device memory and browser performance. If a file is very large, try processing fewer items at once.

Current versions of Chrome, Edge, Safari, and Firefox are recommended.

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Beautify, validate, and minify JSON — instantly in your browser.

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JSON Input

Output

Is my data uploaded?: No. Processing runs locally in your browser, so your files and text do not leave your device.
How do I format JSON?: Follow the steps above to format JSON. The result is generated directly in your browser.
Is this tool free?: Yes. It is free to use with no signup.
Can I use it on mobile?: Yes. The interface works on modern mobile browsers, tablets, and desktop browsers.
What should I know about large files?: Large inputs depend on your device memory and browser performance. If a file is very large, try processing fewer items at once.
Which browsers work best?: Current versions of Chrome, Edge, Safari, and Firefox are recommended.