Timer

Full-screen countdown timer for classrooms.

How to Use

Pick a preset time or enter a custom duration. Press Start to begin. The display changes color as time runs out: green → yellow → red. Use fullscreen mode for projector display. Keyboard: Space = start/pause, R = reset, F = fullscreen.

Presets

Label Alarm

All data stays in your browser. Nothing is sent to any server.

05:00