JSON Validator
Validate JSON format and analyze its structure.
✓ Valid JSON
1
Objects
1
Arrays
3
Keys
2
Max Depth
About This Tool
The JSON Validator instantly checks whether your JSON data is correctly formatted. For valid JSON, it analyzes and shows the number of objects, arrays, keys, and maximum nesting depth.
For invalid JSON, it shows the error location and description to help you find the problem quickly. The format feature provides a nicely indented result.
How to Use
- Paste the JSON data to validate into the input field.
- Validation runs in real time as you type.
- For valid JSON, check the structure info in the stats cards.
- Click "Show Formatted" to view the indented JSON and copy it.
Use Cases
Used for debugging API responses, validating configuration files, fixing malformed JSON, analyzing data structures, and understanding data before writing JSON schemas.
FAQ
- Can I see where the error occurred? Yes, the parser error message shows the error location (line, column).
- What's the difference between formatted output and the original? Formatted output is the same data re-indented with 2 spaces. The content (data values) is identical.
- Can it handle very large JSON? All processing happens in the browser, so very large JSON (several MB or more) may be slow.