JSON Validator
Validate JSON online for free. Check if your JSON is valid and get clear error messages with line information.
Validation runs locally in your browser. Your JSON is not uploaded.
How to use
- Paste your JSON into the input area.
- Click Validate JSON.
- Review the valid or invalid status and any error details.
Example
Valid JSON
{"name":"John","age":25}Output
Valid JSON
FAQ
Does validation modify my data?
No. The validator only checks syntax and does not change your input.