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JSON Formatter & Validator

Format, validate, minify and beautify JSON online - free, instant, private.

Your formatted JSON will appear here...
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How to Use

  1. Paste your JSON into the input box.
  2. Click Format / Validate to beautify it and check for errors, or Minify to compress it.
  3. Copy the result for use in your code.

Frequently Asked Questions

What does the validator check?

It parses your JSON and reports syntax errors with the exact position, so you can fix them quickly.

Is my JSON uploaded anywhere?

No - all processing happens locally in your browser.

What's the difference between format and minify?

Format adds indentation and line breaks for readability; minify removes all unnecessary whitespace to reduce size.

Is it free?

Yes, 100% free with no limits.