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Cybersecurity Tools · free · no sign-up

JWT Validator

Check the structure and claims of a JSON Web Token, such as its expiry.

How it works Report a problem

JWT Validator

Verify JWT structure and check Expiration (exp) status instantly.

Input Data

About the JWT Validator

Check the structure and claims of a JSON Web Token, such as its expiry.

How to use the JWT Validator

  1. Paste your token or click Sample.
  2. Press Process / Generate.
  3. Read the results.

Tips

  • Check the exp claim to see if the token has expired.
  • Full validation of the signature needs the secret or public key and should happen on your server.
  • Do not paste live production tokens into online tools.

Frequently asked questions

Does a valid structure mean the token is trustworthy?
No. Only verifying the signature on your server confirms that.