JWT Expiration Calculator
Convert token lifespan (hours/days) into seconds for JWT 'exp' claim configuration.
JSON Web Tokens (JWT) require expiration times to be set in seconds since the epoch. This tool converts human-readable durations into the integer values required by the 'exp' claim, ensuring that your authentication tokens remain valid for the intended period.
Properly managing token lifespan is a critical security practice. Short-lived tokens reduce the window of opportunity for intercepted credentials, while longer-lived tokens improve user experience. This utility helps developers implement precise security policies across their microservices.
Privacy: Time conversions are handled locally. No authentication data is processed or stored.
Terms: Ensure your server and client clocks are synchronized (NTP) to prevent premature token rejection.
Terms: Ensure your server and client clocks are synchronized (NTP) to prevent premature token rejection.
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