JWT Expiry Checker

JWT Expiry Checker brings together 6 capabilities, including live countdown, lifespan progress, and expiry warnings, in a single browser-based workspace. No installs, no sign-ups, no data leaving your machine. Every operation runs locally, so your files stay private by default.

Rune built JWT Expiry Checker for anyone who values getting things done over navigating menus and settings. Visual progress bar showing what percentage of the token's total lifespan has elapsed with color-coded urgency. It is the kind of tool you bookmark once and reach for whenever the need comes up.

The first step is straightforward: Copy your JWT token and paste it into the input field. Analysis starts automatically. JWT Expiry Checker is built to accept input right away, so you spend your time on the actual task rather than navigating settings panels.

Once your input is ready, check status. Instantly see if the token is valid, expired, or expiring soon with a clear status banner. Results appear in real time, giving you immediate feedback before you commit to a final output.

Finally, monitor countdown. Watch the live countdown timer and lifespan progress bar for real-time expiry tracking. The entire process from start to finish typically takes under a minute for most inputs.

For the best experience, keep these points in mind: Tokens showing 'Expiring Soon' (90%+ elapsed) should be refreshed before making API calls. If your token has no 'exp' claim, it never expires, which can be a security risk in production. Small adjustments like these can make a noticeable difference in your output quality.