JSON Validator

Validate JSON syntax and find errors with detailed line and column information

Paste your JSON here
Parsed result will appear here...

About JSON Validator

This tool validates your JSON data and provides detailed error information including line and column numbers. It helps you quickly identify syntax errors, missing brackets, invalid escape sequences, and other common JSON issues. The validator also checks for duplicate keys in objects as a warning.

Syntax validationError locationDuplicate key detection