Focus Cube

A physical-cube-inspired focus timer with one-tap presets and local notifications.

Focus Cube is a simple focus timer inspired by the physical "time cube" desk timers. Open the popup and click a face of the 3D cube to start a focus session of that length. The cube turns to show the face you picked, and the countdown starts right away. Features • Six one-click presets: 5, 15, 25, 30, 45 and 60 minutes • Pause, resume and reset controls • Keeps counting when the popup is closed or the browser window is minimised • A desktop notification when your session is complete • An optional completion chime, which you can switch on or off with the bell button • No account, no sign-in, no ads and no tracking Privacy Focus Cube does not collect, send or share any data. Your timer state and sound preference are saved only in your browser's local extension storage, and the extension makes no network requests.