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JSON Formatter & Validator

Free online JSON formatter and validator. Format, minify, beautify and validate JSON data instantly. Highlights syntax errors with clear error messages.

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What is JSON?

JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that's easy for humans to read and machines to parse. It's the most widely used format for APIs and web services.

Useful Tips

Use 2 spaces for standard indentation (most common in JavaScript projects)
Use 4 spaces for Python-style formatting
Minify when deploying to production to reduce file size
Always validate before using in APIs to avoid runtime errors