Free Online Tool

JSON Formatter

Make API responses and JSON settings easier to read and check for errors.

The result will appear here.

Your input is not sent to a server and is processed only in your browser.

How to Use

  1. Enter JSON text.
  2. Choose format, minify, or validate.
  3. Fix any error message shown.

Examples

  • Format a minified API response
  • Validate JSON before deployment

Calculation and Conversion Notes

`JSON.parse` validates the input. Formatted JSON is generated with `JSON.stringify` using indentation. Minified output is generated as a JSON string without spaces and line breaks. Your input is processed only in the browser and is not sent to a server.

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