JSON Formatter & Validator - Free Online Tool
Format, validate, and prettify JSON data instantly. Syntax highlighting and error detection included.
Input JSON
Formatted JSON
Formatted JSON will appear here...
How to use the JSON Formatter:
🎨 Format & Prettify
Makes your JSON readable with proper indentation and line breaks. Perfect for debugging and reviewing JSON data.
🗜️ Minify
Removes all unnecessary whitespace to reduce file size. Ideal for production environments and API responses.
✅ Validate
Checks your JSON syntax for errors and provides detailed error messages with line numbers for easy debugging.
📁 Code Folding
Collapse and expand JSON sections (objects and arrays) directly in the code view. Click the +/- buttons to fold sections with previews.