JWT Expiry Checker — Is Your Token Expired?
Quick Answer: Paste your JWT to check the exp (expiration) claim. The tool decodes the payload, extracts the exp timestamp, and shows whether the token is still valid, how much time remains, or how long ago it expired.
FAQ
What is the exp claim in a JWT?
The exp claim is a Unix timestamp indicating when the token expires. After this time, the token should be rejected. It is a registered claim defined in RFC 7519.
What if my JWT has no exp claim?
JWTs without exp never expire from a token perspective. This is a security risk. Best practice is always including exp with a reasonable lifetime (15min-24hr for access tokens).