JSON Formatter & Validator - Online JSON Formatter Tool

Format, validate, and beautify JSON data online. Free JSON formatter with syntax validation, minification, and prettification features.

Input JSON

Indent:

📖 How to Use JSON Formatter

1
Paste or type your JSON data into the input field
2
Click 'Format' to beautify, 'Minify' to compress, or 'Validate' to check syntax
3
Adjust the indentation level if needed (default is 2 spaces)
4
Copy the formatted result or continue editing

❓FAQ

Q: What is JSON?

A: JSON (JavaScript Object Notation) is a lightweight data-interchange format that's easy for humans to read and write and easy for machines to parse and generate. It's widely used for APIs and configuration files.

Q: Is my data safe?

A: Yes! This JSON formatter runs entirely in your browser. Your data never leaves your device, ensuring complete privacy and security.

Q: What's the difference between Format and Minify?

A: Format (or beautify) adds proper indentation and line breaks to make JSON readable. Minify removes all unnecessary whitespace to reduce file size, ideal for production use.