JSON Validator
Check whether a block of JSON is syntactically correct, pointing out the specific error and location if the structure is malformed or invalid.
Enter JSON to validate.
About the JSON Validator
A JSON validator checks whether a block of JSON is syntactically correct, pointing out the specific error if the structure is malformed.
How to use
1
Paste your JSON into the input field.
2
The tool checks it automatically and reports whether it's valid.
3
If invalid, review the error message to locate the problem, such as a missing comma or unclosed bracket.
Frequently asked questions
What's a common cause of invalid JSON?
Trailing commas after the last item in an object or array are one of the most frequent causes, since standard JSON doesn't allow them.
Does this tool fix errors automatically?
No, it identifies where the problem is so you can fix it yourself. For automatic reformatting, use the JSON Formatter instead.
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