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Data utility
About the JSON Formatter
Format, validate, beautify and minify JSON online for free. Find syntax errors quickly and copy clean JSON from a private browser-based workspace. The focused workspace lets you configure the input, review the result and copy or download it without unnecessary steps.
- Free core access with instant results and no forced account.
- Responsive workspace for desktop, tablet and mobile devices.
- Browser-first processing for supported operations with clear privacy notices.
How to use it
Complete the task in three steps.
- Add or configure the input for the result you need.
- Run the tool and review the live output or preview.
- Copy, download or save the result privately on the current device.
Core access is free, and results can be saved privately in the current browser. Signed-in users can also keep favourites and small cloud snippets.
Frequently asked questions
JSON Formatter FAQ
Is this JSON Formatter free to use?
Yes. The core JSON Formatter is free to use without payment or forced registration.
Is my input uploaded to the server?
The main operation is designed to run locally in your browser whenever the browser supports it.
Can I use the JSON Formatter on mobile?
Yes. FreeDevTools uses a responsive application-style workspace for phones, tablets and desktop screens.