Can I show it on a projector?

Yes. Press fullscreen or the F key after starting the timer.

Does it work if the internet drops?

After Clockfresh is cached, the timer shell works offline on the same device.

Yes. Clockfresh does not place ads around the timer surface.

Will the countdown stay accurate if the browser slows down?

Yes. The timer uses real clock time, so it catches up correctly after background throttling, lock/unlock or a quick reload.

Classroom Timer — fullscreen visual timer for teachers

A teacher timer without the visual noise

The classroom timer keeps the screen readable from across the room: large tabular digits, a simple progress sweep and controls that are easy to hit quickly. There are no ads, pop-ups or busy animations competing with the lesson.

Use it for warm-ups, centers, independent work, quizzes, group discussions, cleanup, brain breaks and transitions between activities.

Good for

Group-work blocks.
Station rotations.
Cleanup countdowns.
Quiz or writing sprints.

Questions

Can I show it on a projector?: Yes. Press fullscreen or the F key after starting the timer.
Does it work if the internet drops?: After Clockfresh is cached, the timer shell works offline on the same device.
Is it ad-free?: Yes. Clockfresh does not place ads around the timer surface.
Will the countdown stay accurate if the browser slows down?: Yes. The timer uses real clock time, so it catches up correctly after background throttling, lock/unlock or a quick reload.