Classroom Timer

Countdown, stopwatch and break timer with sounds and fullscreen display.

How to use this tool

Choose Countdown, Stopwatch or Break, type a time such as 5:00 or 90s, or tap a preset.
Start, pause and reset with the buttons or the keyboard: Space starts/pauses, R resets, F toggles fullscreen.
A sound plays when a countdown ends (switch it off or pick another sound in the settings).

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