Classroom timer
A big countdown for class activities: quick presets, your own duration, full screen and a sound when time is up.
- No account
- Works offline
05:00
Quick presets
Duration
Keys: space starts or pauses, R resets, F toggles full screen.
Before you start
- Set any duration from 5 seconds to 99 minutes 59 seconds.
- Use full screen (button or F key) on the projector so the whole class can see it.
- Aquesta eina funciona en directe al navegador: no genera cap PDF.
- No cal cap compte i no desa res entre visites.
In the classroom
Use it on the projector or a shared screen so the whole class sees the time left. The end sound plays three short beeps.
Questions
Does the timer keep running if I change tabs?
Yes. The countdown follows the clock, not how often the page redraws, so the end time stays correct when you come back.
Will the end sound play?
Yes. Three short beeps play when the time is up; make sure the device is not muted.
What is the longest duration?
99 minutes and 59 seconds. The shortest is 5 seconds.
Does it work offline?
Yes. Once the page has loaded, the timer runs fully in your browser.
Is this free?
Yes. These printable tools do not need an account or payment.
Are my names and texts uploaded?
No. Your input is processed in your browser, not sent to a server.
Can I use the tools on a phone?
Yes. Use the preview before downloading. A larger screen may make editing longer lists easier.
Will my work be saved if I close the page?
No, except the name lists you choose to save in the groups and certificates tools: those stay in this browser until you delete them. Everything else is lost on closing or reloading, so download the PDF or keep a copy of your text.