JSON Validator

Check whether your JSON is valid and see the error location.

How to use JSON Validator

  1. Open the JSON Validator tool and enter or paste your input.
  2. Adjust any options to match what you need.
  3. The result updates instantly — copy or download it.

Frequently asked questions

Yes. JSON Validator is completely free and you do not need to create an account.

Yes. This tool runs entirely in your browser — nothing you enter is uploaded to our servers.