Question 1

How do I format JSON online?

Accepted Answer

Paste or type your JSON into the input box, then click Format. The tool pretty-prints your JSON with readable indentation and shows the result in the output area ready to copy.

Question 2

Does this JSON formatter validate syntax?

Accepted Answer

Yes. If your JSON is invalid, the formatter shows an error message and highlights the line where the syntax problem was detected so you can fix it quickly.

Question 3

Is my JSON data sent to a server?

Accepted Answer

No. Formatting runs locally in your browser. Your JSON never leaves your device, which makes this tool safe for API responses, config files, and other sensitive data.

Question 4

Can I copy the formatted JSON?

Accepted Answer

Yes. After formatting, use the Copy button to copy the beautified JSON to your clipboard in one click.

JSON Formatter

Input

Output