Free JSON Validator & Formatter

Validate, format, and beautify your JSON data with advanced syntax highlighting and error detection. Free online JSON tool for developers.

Input JSON

0 characters

Indent: Sort keys

Ready to validate

0 lines

0 depth

0 objects

0 arrays

Detect and highlight JSON syntax errors with line numbers

Format JSON with customizable indentation and sorting

Color-coded JSON output for better readability

Get statistics about your JSON structure

This free online JSON Validator and Formatter tool helps developers validate, format, and analyze JSON data. It provides:

Perfect for developers working with APIs, configuration files, or any JSON-based data structures.