JSON Formatter & Validator
Format, validate, and beautify JSON instantly. All processing happens in your browser.
Input
Output
Characters: 0 Lines: 0 Size: 0 B Keys: 0
Privacy First: All processing happens locally in your browser. Your data never leaves your device.
Why Use Our JSON Formatter?
Our free JSON formatter and validator helps developers quickly format, beautify, and validate JSON data directly in the browser. Whether you're debugging API responses, cleaning up configuration files, or validating data structures, this tool provides instant results with syntax highlighting and error detection.
Key Features
- Instant Formatting - Beautify JSON with customizable indentation (2 spaces, 4 spaces, or tabs)
- Validation - Detect syntax errors with detailed error messages and position indicators
- Minification - Compress JSON by removing whitespace for production use
- Syntax Highlighting - Color-coded output for keys, strings, numbers, booleans, and null values
- Statistics - View character count, line count, file size, and key count
- Privacy First - All processing happens locally in your browser
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