JSON Formatter — Free Online Tool

Beautify and format JSON with syntax highlighting. JSON Formatter is a free online tool from the ToolsRift JSON Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

Loading JSON Formatter…

How to use JSON Formatter

  1. Open the JSON Formatter above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

What indentation should I use?

2 or 4 spaces is standard. Tab indentation is preferred by some style guides like Google's.

Does it validate while formatting?

Yes — invalid JSON triggers an error before formatting is attempted.

Can I format minified JSON?

Yes — paste minified JSON and it will be expanded and formatted instantly.

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