Your numbers stay with you.

On CalcPebble, every calculation is executed entirely within your browser's JavaScript engine. Your inputs are never transmitted to our servers or stored in any database.

Local preferences

Your light/dark theme preference is saved locally on your device via browser local storage. We do not store your calculation history.

No tracking scripts

CalcPebble does not use third-party cookies, intrusive analytics, or ad trackers. Your session is completely private.