utility ⚡ Interactive
JSON Formatter & Validator
Format, validate, and beautify JSON with syntax highlighting
• Updated: February 12, 2026
A simple and fast JSON formatter and validator that runs entirely in your browser. No data is sent to any server.
Features
- Format JSON: Pretty-print JSON with proper indentation
- Minify JSON: Remove all whitespace for compact output
- Validate JSON: Instant error messages for invalid JSON
- Copy to Clipboard: One-click copying of formatted output
- Privacy-First: All processing happens locally in your browser
How to Use
- Paste or type your JSON in the input field
- Click “Format” to pretty-print with indentation
- Click “Minify” to remove all whitespace
- Click “Copy” to copy the formatted output to your clipboard
Perfect for debugging API responses, cleaning up JSON data, or validating JSON syntax.