What does this JSON formatter do?

It formats (prettifies) minified JSON with proper indentation, minifies JSON to a single compact line, and validates JSON syntax — highlighting exactly where errors occur.

Is my JSON data safe?

Yes. All processing happens entirely in your browser using JavaScript. Your JSON data is never sent to any server.

What indentation options are available?

You can choose 2 spaces, 4 spaces or tab indentation from the indent size dropdown.

Can it detect JSON errors?

Yes. Click 'Validate Only' and the tool will tell you exactly whether your JSON is valid or show the error message from the parser.

Is the JSON formatter free?

Yes, completely free with no account, no limits and no ads in the output. It works for any size of JSON.

JSON Formatter & Validator — Prettify, Minify & Validate Online Free

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