JSON Validator
Check whether text is syntactically valid JSON.
Make this result useful
Use it now, or keep a copy for later. We never save your tool input automatically.
How to use this tool
Paste a JSON document and select Validate. Read the validity message in the result.
Important to know
Check whether text is syntactically valid JSON.
A valid result checks syntax only. It does not validate against a schema or confirm that the data is trustworthy.
Formula and methodology
The JSON parser reports whether the input conforms to JSON syntax.
Frequently asked questions
Does valid JSON mean the fields are correct?
No. Field names and values need separate schema or application validation.