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
- Enter JSON text.
- Choose format, minify, or validate.
- 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.
FAQ
Does JSON Formatter save my input?
No. Your input is not stored on a server. Supported actions run in your browser.
Can I use it on mobile?
Yes. The pages are responsive and work on desktop and mobile browsers.
Can I rely on the result?
Use the result as a quick reference. Important work should be checked separately.