Full Screen Timer — Big, Distraction-Free Countdown
Set your time and tap full screen: only the giant countdown is on screen, with no ads, menus or sign-up. Perfect for focus sessions, classrooms, presentations and timing anything from across the room.
About the full screen timer
A full screen timer turns your display into one large countdown with nothing else on it. Set hours, minutes and seconds, press the full-screen button, and the digits fill the screen, readable from the back of a classroom. No sign-up, and the alarm plays when time is up even if you switched tabs.
Where a full-screen timer helps most
| Setting | Why full screen | Typical length |
|---|---|---|
| Classroom projector | Readable from the back | 3-15 min |
| Presentation or talk | Speaker sees it at a glance | 10-45 min |
| Gym or group class | Visible across the room | Varies |
| Exam hall | No distractions on screen | 1-3 hours |
When to use a full screen timer
- Focus sessions where you want zero distractions on screen — just the countdown.
- Classrooms and exams — project a giant timer everyone can read from the back.
- Presentations and talks — keep speakers on time with a clock everyone can see.
- Workshops, workouts and cooking where you glance at the timer from a distance.
- Streaming or recording — a clean countdown on a second screen.
How to use the full screen timer
- Type the hours, minutes and seconds you need.
- Press Start (or Spacebar) to begin the countdown.
- Tap the full-screen button — the digits expand to fill your whole screen.
- Press Esc (or the button again) to exit full screen at any time.
- When time is up, the screen flashes and an alarm plays — even if the tab is hidden.
Tips for the full screen timer
- In full screen only the timer is shown: no ads, menus or pop-ups from the site.
- Cast or mirror your screen to a TV or projector for classrooms and meetings.
- Use keyboard shortcuts: Spacebar to start or pause, R to reset, F for full screen.
- Bookmark the page — it loads instantly next time, and after your first visit it usually opens offline too.
- For a focus cycle with breaks use the Pomodoro timer; for class transitions, Classroom Mode.
Full screen timer FAQ
Is this full screen timer free, and are there ads in full screen?
It is free with no sign-up. In full screen only the countdown is shown, so no ads appear on screen; we never place ads inside the timer.
How do I make the timer full screen?
Set your time, then tap the full-screen button (or press F). The countdown digits expand to fill your entire screen. Press Esc to exit.
Will the alarm sound if I switch tabs?
Yes. The countdown keeps running in the background and the alarm plays when time is up, even if the tab is hidden — though browsers may delay audio in a background tab, so keep it visible when you can.
Can I use it in a classroom or on a projector?
Yes. The digits are readable across a room; cast or mirror your screen to a projector or TV for classes, exams and meetings.
Does it work on phones and tablets?
Yes. It works in any modern browser and scales from a phone screen up to a projector.
How do I get a big timer that fills the screen?
Press Start, then the full screen button or the F key. The digits grow into a big, large timer that fills the whole display (fullscreen mode), which is ideal for a projector, a TV or the far side of a room.
