Fullscreen timer
A free fullscreen timer that turns any screen into a countdown the whole room can read. Press F and the ring and digits take over the display, which no phone timer can do on a projector. Also searched as full screen timer, full screen countdown, timer full screen.
Getting in and out
- Enter: press F or click the ⛶ button next to Start.
- Leave: press F again or Esc.
- Control: Space starts and pauses, R resets, and 1 to 9 set that many minutes before you start.
- Low light: click the moon button in the header to switch to dark mode before going fullscreen. The choice is remembered.
The digits scale with the screen, so a 65-inch TV shows numbers readable from the back of a gym. Leave fullscreen and the remaining time still shows in the tab title.
Screen setups that work
| Setup | How to connect | Suggested sound |
|---|---|---|
| Classroom projector | Teacher laptop, browser, press F | Chime, with the room volume up |
| Kitchen tablet | Stand the tablet up, keep the screen on | Beep |
| Gym TV | Laptop over HDMI, or the TV's own browser | Bell, or Silent if music is playing |
| Conference room | Share the browser tab to the room display | Silent plus Notify |
| Second monitor | Drag the window over, press F | Bell |
Good pages to open fullscreen
The classroom timer loads five minutes for transitions and tests. The 10 minute timer is the most used length for breaks and warm-ups. The timer clock shows the time of day fullscreen when nothing is counting down. If you mainly want larger digits without leaving the page, see the big timer.
Frequently asked questions
How do I make the timer fullscreen?
Press F or click the ⛶ button. The ring and digits fill the whole screen. Press F again or Esc to leave fullscreen.
Does fullscreen work on a projector or TV?
Yes. Open the page in any browser on the computer connected to the projector or TV, then press F. Digits scale to the screen size.
Can I control the timer while it is fullscreen?
Yes. Space starts and pauses, R resets and the number keys set minutes. The Time's up overlay also appears in fullscreen.
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