Free classroom tool
Classroom timer
A big, clear countdown for group work, tests and transitions. Tap a preset or set your own minutes and seconds, press Start, and put it full screen on the projector. The last ten seconds turn red and a gentle chime plays when time is up. It works without an internet connection once the page is open.
05:00
Space starts or pauses, R resets, F toggles full screen. The last ten seconds turn red.
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Frequently asked questions
Does the timer keep running if I switch tabs?
Yes. It counts from the clock, not from screen updates, so the remaining time stays correct when the tab is in the background. The page title shows the time left so you can see it from another tab.
Can I turn the sound off?
Yes. Untick Chime and the timer ends silently with the display turning green. The chime is three short tones at a moderate volume.
What are the keyboard shortcuts?
Space starts or pauses, R resets to the last time you set, and F toggles full screen. Escape leaves full screen.
How do teachers use it with live polls?
A common pattern is think-pair-share: one minute to think, two minutes in pairs, then a live poll so every student, including the quiet ones, gives an answer from their phone.
Ready to ask your audience?
Sign in free, build a poll in about a minute, share a QR or link, and watch the room answer live.