JSON Formatter & Validator

Format, beautify, and validate JSON instantly. Runs entirely in your browser - no data sent to servers.

Indent:

Input JSON

Output

How to Use

Paste your JSON data into the input field

Select your preferred indentation style

Click "Format" to beautify or "Minify" to compress

Copy the result using the "Copy" button

{}

Transform compact JSON into readable output

min

Remove whitespace to compress JSON

Detect syntax errors instantly

100% client-side processing