JSON Validator
Validate JSON syntax, find formatting mistakes, and inspect structured data before using it in APIs, configs, or developer tooling.
Validate JSON
How to Use
- Paste your JSON code in the input area
- Click Validate JSON
- View validation results and any error details
All processing is done in your browser, and files are never sent to a server.
Frequently Asked Questions
It checks for proper syntax including matching brackets, correct use of commas, valid string formatting, and proper value types.
The validator identifies errors but does not automatically fix them. It shows you where the error is so you can correct it.
No, it validates standard JSON format only.