JSON Validator
Check whether text is valid JSON and see a readable error when it is not.
Tool
Output
Output appears here.Your data stays in this browser and is not uploaded.
How it works
- 1
Paste the JSON you want to check.
- 2
Run Validate.
- 3
Fix the reported line if it is invalid.
Related tools
Questions
Does this use a different parser than the formatter?
No. Both tools use the same JSON parser so they agree on what is valid.