JSON Formatter

Paste your JSON to format, validate, and beautify it instantly.

Input JSON

How to format JSON online

  1. Paste your raw or minified JSON into the input box.
  2. Choose your preferred indentation (2 or 4 spaces).
  3. Click Format — get clean, readable JSON instantly.
  4. Copy the result with one click.

Invalid JSON is highlighted with an error message so you can find and fix the problem. Your data never leaves your browser beyond the formatting request.