#securityUpdated 2026-07-25

JWT Expiration Checker

Check whether a JWT is expired or still valid.

Input

Output

Result will appear here.

runs locally

Features

Expires soon detection
Readable output
No backend required

How to use JWT Expiration Checker

1Paste a JWT
2Click Check
3Read the expiry output

Example

Input — Example

eyJhbGciOiJub25lIn0.eyJleHAiOjE3MDAwMDAwMDB9.

Output

Expired

What JWT Expiration Checker does

Check whether a JWT is expired or still valid. It runs entirely client-side, so nothing you enter is sent to a server — useful when working with sensitive data or when you just want an instant result without waiting on a network round-trip.

Common use cases

Session validation
Auth debugging

FAQ

Does it verify the signature?

No — it checks the exp claim and the current time only.

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