✓ JSON Validator

How to Validate JSON

Paste your JSON data into the editor and click Validate. The tool instantly checks for syntax errors and shows the exact line and column where the error occurs. You can also format (pretty-print) or minify your JSON.

Essential for developers working with APIs, configuration files, and data interchange. Catches missing commas, unmatched brackets, invalid strings, and other common JSON errors.

What errors does this detect?

All JSON syntax errors: missing commas, trailing commas, unquoted keys, single quotes instead of double quotes, unmatched brackets/braces, invalid escape sequences, and more.

What's the difference between JSON Formatter and JSON Validator?

The validator focuses on error detection with detailed error messages and position info. The formatter focuses on beautifying valid JSON. This tool does both — validates first, then lets you format or minify.