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JSON Formatter

Beautify or minify JSON with customizable indentation. Validates syntax automatically.

Clean, readable JSON is essential for debugging APIs, configuring applications, and sharing data with teammates. This JSON formatter lets you beautify (pretty-print) or minify (compress) JSON with a single click. Choose your preferred indentation level from 1 to 8 spaces.

The tool validates JSON syntax automatically and reports errors with line and column information. Everything runs in your browser with no data sent to any server, making it safe for formatting sensitive configuration files and API responses.

Formatter

Results

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How to Use

  1. Paste your JSON into the input field
  2. Select Beautify or Minify mode
  3. Choose the number of indent spaces (for beautify)
  4. Click Calculate to format

FAQ

Does it validate JSON?

Yes. If the JSON is invalid, the tool shows an error message with details about what went wrong.

What indent options are available?

You can choose 1 to 8 spaces for indentation when beautifying. The default is 2 spaces.

Is my JSON sent to a server?

No. All formatting runs in your browser. Your data never leaves your device.

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