Instant Formatting
JSON Formatter
Format, validate, and minify JSON data instantly. Paste your JSON and beautify it with one click.
Input JSON
Output
Tab size:
Pretty Print
Beautify JSON with configurable 2 or 4 space indentation.
Validation
Instantly detect and display JSON syntax errors with detailed messages.
Minify
Compress JSON by removing all whitespace for smaller payloads.
JSON Formatter FAQs
Everything you need to know about this tool.
Free Online JSON Formatter & Validator
Movfy's JSON Formatter is a free tool for developers to quickly format, validate, and minify JSON data. Whether you're debugging API responses, editing config files, or cleaning up data, this tool makes JSON readable in one click.
All processing happens client-side in your browser. Your data never leaves your machine, making it safe for sensitive payloads.