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JSON Formatter

Format, validate and minify JSON directly in your browser, with clear syntax feedback and easy output actions.

0 input characters

Your JSON is parsed, formatted and minified locally in this browser. It is not uploaded by this tool.

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How to use JSON Formatter

  1. 1Paste or type JSON into the input.
  2. 2Choose Format & Validate or Minify.
  3. 3Copy the valid result when ready.

Useful tips

  • •Use Format to make nested data easier to read.
  • •Use Minify when you need compact JSON.
  • •The error message helps locate invalid syntax.

Frequently asked questions

Is the JSON uploaded?

No. Processing happens in your browser.

Does it validate JSON?

Yes. Invalid JSON produces an error instead of an output.

Can it minify JSON?

Yes. Minify removes unnecessary whitespace.