Does this tool store my JSON?

No. Formatting runs locally in your browser; nothing is uploaded.

Can I minify JSON as well as beautify?

Yes. Use the Minify button or set indent to Compact (0 spaces).

The formatter shows the parse error so you can fix syntax before exporting.

Format, validate, and beautify JSON in your browser. Paste minified or messy JSON and get readable output instantly.

Choose 2-space, 4-space, or compact minified output. Invalid JSON shows a clear error message.

Copy formatted JSON or download it as a .json file for configs, APIs, and debugging.

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Minified input

{"name":"Ada","active":true,"tags":["dev","tools"]}

Formatted output

{
  "name": "Ada",
  "active": true,
  "tags": ["dev", "tools"]
}

Does this tool store my JSON?: No. Formatting runs locally in your browser; nothing is uploaded.
Can I minify JSON as well as beautify?: Yes. Use the Minify button or set indent to Compact (0 spaces).
What happens with invalid JSON?: The formatter shows the parse error so you can fix syntax before exporting.