JSON Formatter & Validator
Format, validate, and minify JSON with tree view and detailed stats
JSON Input
Output
About JSON Formatter & Validator
This free online JSON formatter and validator helps developers quickly format, validate, and analyze JSON data. Whether you're debugging API responses, cleaning up configuration files, or exploring complex JSON structures, this tool provides instant formatting with 2-space indentation, minification with size comparison, and an interactive tree view.
The validator provides detailed error messages with position information, making it easy to identify and fix JSON syntax issues. View statistics like total key count, maximum nesting depth, and file sizes for both formatted and minified versions. All processing happens entirely in your browser for maximum privacy and speed.
Perfect for developers working with REST APIs, webhooks, configuration files, or any JSON data. No signup required, completely free, and works offline once loaded.
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