JSON Formatter

Format, validate, and pretty print JSON instantly in your browser.

Paste raw JSON into the input box to get readable output and quick error feedback. This free tool helps developers debug APIs, inspect payloads, and clean up JSON data fast.

Enter JSON:

Result:

JSON Formatter FAQ

What does this JSON formatter do?

It validates JSON syntax and converts minified or messy JSON into readable, indented output.

Is this tool free to use?

Yes. The formatter runs in your browser and is free to use.

Can I use it to debug API responses?

Yes. Paste API response JSON into the input field to quickly inspect nested objects and arrays.

Is my JSON data private?

Yes. Your data is processed locally in your browser and never leaves your device.