JSON Formatter
Format, validate, minify, and prettify JSON data instantly.
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Free online JSON formatter and validator. Format (beautify), minify, validate, and transform JSON data with syntax highlighting and error detection. All processing happens in your browser — your data stays private.
Features
- ✓Format/beautify JSON with configurable indentation (2, 4, 8 spaces or tabs)
- ✓Validate JSON syntax with detailed error messages and line numbers
- ✓Minify JSON for production use with maximum compression
- ✓Error highlighting showing exact location of syntax issues
- ✓Copy formatted JSON with one click
- ✓Download as .json file
Use Cases
- →Debugging API responses and webhook payloads
- →Reading and editing minified configuration files
- →Validating JSON before storing in databases
- →Preparing JSON documentation for APIs
Tags
json formatterjson validatorjson prettierbeautify json