Is my JSON data safe?

Yes, this tool runs entirely in your browser. Nothing is sent to any servers. Your JSON never leaves your device.

Can it validate JSON?

Yes, the formatter includes validation. It shows errors with line numbers if your JSON has syntax issues.

Free JSON Formatter & Validator Online

Input JSON

Formatted Output

Frequently asked questions

How do I format JSON online?

Paste your JSON code into the input field and click "Format". The formatter will automatically indent and organize your JSON for readability. Invalid JSON will show an error message.

What is JSON beautify?

JSON beautify (or formatting) takes minified JSON and adds proper indentation, line breaks, and spacing to make it human-readable. It's the opposite of minification.

Is this JSON validator free?

Yes! Our JSON formatter includes built-in validation. It checks if your JSON is valid and shows clear error messages if there are syntax issues. Completely free with no limits.