JSON Validator
Check whether a JSON document parses and see the shape of its root value without uploading it.
Free browser tool
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Use json validator
Runs in this browser tab
Result
How to use it
Paste a JSON document to confirm its syntax before adding it to a configuration or API request.
Try this example
{"tools":["chat","terminal"]}What to check
This checks JSON syntax, not an application-specific schema or business rule.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
What does the JSON validator actually check?
It checks whether the text parses as JSON and identifies the root value type. It does not verify an API's required fields or business rules.
Can a valid JSON result still be wrong for my app?
Yes. A document can be syntactically valid while missing fields or using the wrong values. Validate against the receiving app's schema separately.
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