JSON Formatter

Format, validate, and beautify JSON data instantly. All processing happens in your browser for maximum privacy and security.

Instant Validation

Automatically validates JSON syntax and highlights errors with detailed error messages.

Smart Formatting

Beautify or minify JSON with customizable indentation for better readability.

100% Private

All processing happens locally in your browser. Your data never leaves your device.

How to Use

1

Paste Your JSON

Copy and paste your JSON data into the input field on the left.

2

Format or Minify

Click "Format JSON" to beautify or "Minify" to compress your JSON data.

3

Copy Result

Use the "Copy" button to copy the formatted JSON to your clipboard.