Can I format minified JSON?

Yes — paste any valid JSON string and the tool instantly adds indentation and line breaks.

Does it validate JSON too?

Yes. If your JSON has syntax errors, the tool highlights the exact line and character position.

You can choose 2-space, 4-space, or tab indentation.

The tool handles JSON files up to several megabytes in your browser without issues.

Format and beautify JSON data with syntax highlighting. Works in your browser. Free, no signup.

No sign-up Batch convert 100% free

Indent:

Formatted JSON will appear here...

How useful is JSON Formatter?

Paste or type raw JSON into the editor

Click "Format" to beautify with proper indentation

Copy the formatted output or download as .json

Validate JSON syntax and find errors instantly.

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