JSON Formatter
JSON Formatter checks your JSON text for validity and reformats it with clean indentation — or minifies it down to a single line.
How to use
- 1Paste your JSON text.
- 2Click "Format" or "Minify".
- 3Copy the result.
Why FREE PDF?
- Completely free
- No account required
- Processing happens in your browser whenever possible
- Your files stay yours
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Frequently Asked Questions
Can this tool detect invalid JSON?
Yes, if there's a syntax error in the JSON, it points out where the error is.
Can I turn compact (single-line) JSON into readable form?
Yes, you can convert single-line, compact JSON into an indented, readable format.
Is there a minify option?
Yes, you can strip whitespace and line breaks to shrink the JSON to its smallest form.
Is the data I enter sent to a server?
No, formatting and validation happen entirely in your browser.