JSON Validator
Check if JSON is valid, find the error position and see its structure. Your text stays in your browser and is never uploaded.
Paste JSON above to check it.
How to use
- Paste your JSON.
- See instantly whether it is valid.
- If invalid, use the reported line and column to find the problem.
Notes and limitations
- Validates JSON syntax only, not against a JSON Schema.
- Error positions come from your browser's JSON parser, so wording can differ between browsers.
- Single quotes, comments and trailing commas are invalid JSON.
FAQ
What does the structure summary show?
The root type, maximum nesting depth, and counts of objects, arrays, keys and value types.