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Format, validate, and minify JSON data professionally
JSON (JavaScript Object Notation) is strict. A single missing comma or unclosed bracket can break your entire application. Our JSON Validator helps you identify these syntax errors instantly with precise line numbers, saving you hours of debugging time. Whether you need to minify JSON for production or beautify messy API responses for readability, this tool handles it all securely in your browser.
A JSON formatter is an essential developer tool that formats, validates, and minifies JSON (JavaScript Object Notation) data to make it readable and properly structured. JSON is the standard data format for APIs, configuration files, and data exchange between applications. Our free JSON formatter automatically formats JSON with proper indentation, validates syntax to catch errors, minifies JSON to reduce file size, and provides detailed statistics about your JSON structure. All processing happens 100% client-side in your browser, ensuring your data never leaves your device and remains completely private.
Copy your JSON data and paste it into the input field, or type JSON directly. The tool supports both formatted and minified JSON.
Click the "Format" button to automatically format your JSON with proper indentation. Adjust the indentation level (2 or 4 spaces) if needed.
Use the "Validate" button to check for syntax errors. The tool will highlight errors with line and column numbers for easy debugging.
Click "Minify" to remove all whitespace and reduce file size. Useful for production environments where smaller file size is important.
Check the JSON statistics panel to see detailed information about objects, arrays, keys, depth, and total size of your JSON data.
Use the search function to find specific keys or values, or convert your JSON to YAML, XML, or CSV format if needed.
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