Large Online Countdown

A Full Screen Timer You Can See From Across the Room

Set a countdown for presentations, classrooms, workouts, cooking, focus sessions, meetings, or events — then switch to a clean full-screen view.

Large, easy-to-read displaySound & browser alertsKeep-screen-awake support
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Quick timers

Choose a common duration or set your own.

Optional

Enter Full Screen

Set a countdown for presentations, classrooms, workouts, cooking, focus sessions, meetings, or events — then switch to a clean full-screen view.

Need a smaller always-visible timer?

Use the Floating Timer when you want a compact timer while working in other windows.

Open Floating Timer
Made for a Bigger Screen

Ways to Use the Full Screen Timer

Presentations

Keep a large countdown visible to the speaker or audience.

Classrooms

Display time remaining for activities, quizzes, discussions, or transitions.

Meetings

Give agenda items or breakout sessions a visible time limit.

Workouts

Run a large timer that is easier to read from across the room.

Cooking

Keep a countdown visible while moving around the kitchen.

Focus Sessions

Use a simple visual countdown when you want fewer distractions.

How It Works

Start a Large Countdown in Seconds

1

Choose a duration

Pick a quick timer or enter hours, minutes, and seconds.

2

Add a label

Optionally name the timer so people can see what the countdown is for.

3

Start when you're ready

The timer waits for you instead of starting automatically when the page opens.

4

Go full screen

Use the large display when you want the timer visible from farther away.

5

Adjust if needed

Pause, resume, reset, or add and remove time while the timer is running.

6

Get an alert

If enabled and supported, the timer can play a sound or show a browser notification when time runs out.

Timer Settings Stay Simple

The countdown runs in your browser. Display and alert preferences may be saved in local browser storage so they can be reused on this device.

Anyone using the same browser profile may be able to see locally saved timer preferences or custom presets.

Good to Know

  • Browser fullscreen behavior varies by device.
  • Notifications require browser permission.
  • Screen wake lock is not supported everywhere and may be released when the page is hidden.
  • Sound playback can be affected by browser audio restrictions or device volume settings.
  • Closing the page ends the active browser timer unless a separate operating-system timer is used.
FAQ

Frequently Asked Questions

How do I start the full screen timer?
Choose a preset or custom duration, optionally add a label, then select Start. The redesigned timer does not begin automatically just because you opened the page.
Can I make the timer fill my entire screen?
Yes, when your browser supports the Fullscreen API. Select Enter Full Screen. Browser and device behavior can vary, and you can normally press Esc to leave fullscreen.
Can I use the timer for a presentation?
Yes. The large display and optional label are designed to remain readable from farther away, making the timer useful for presentations, talks, panels, or timed activities.
Can I use it in a classroom?
Yes. You can display a countdown for quizzes, group activities, transitions, independent work, or discussion time.
Will the timer keep my screen from sleeping?
On supported browsers, you can enable Keep Screen Awake while the timer is running. Wake lock support depends on the browser and device and may be released when the page is hidden or the system changes state.
Will I hear a sound when the timer finishes?
If completion sound is enabled and your browser and device allow audio playback, the selected sound will play when the timer reaches zero. Device mute settings and browser audio restrictions can affect playback.
Can the timer send a notification?
Yes, if browser notifications are supported and you grant permission. Notification behavior can vary by browser, operating system, and device settings.
Can I change the time after the timer has started?
Yes. The redesigned controls can add or remove time while the timer is running, and you can also pause or reset it.
What happens if I switch to another browser tab?
The timer should calculate remaining time from its target finish time rather than relying only on one-second browser intervals. This allows it to correct the display when you return after a background tab has been throttled.
Does the timer stay accurate if my browser slows down?
The redesigned timer should use the planned end time as its source of truth. The screen may refresh less frequently when a browser is busy or in the background, but the remaining time is recalculated from the current clock.
Can I set hours, minutes, and seconds?
Yes. Choose Custom to enter a duration using hours, minutes, and seconds.
Can I add a name to the timer?
Yes. The optional label can show text such as Presentation, Exam, Workout, Break, or another description above the countdown.
Does it support a flip-clock style?
Yes. Flip can remain available as an optional clock style, while the default large digital view is designed for maximum readability.
Can I change the colors or background?
Yes. You can choose from a small set of readability-focused themes, with additional backgrounds available separately if desired.
Does it work on phones and tablets?
The interface can adapt to smaller screens and landscape orientation. Fullscreen availability and browser controls differ between mobile browsers, so the page should not force the device to rotate.
Can I open a timer from another GadgetKit tool?
Yes. The redesigned page can accept URL parameters for duration and label so another tool can open a prepared timer without requiring you to enter the same information again.
Does the timer save my settings?
Display and alert preferences can be stored locally in the current browser. No account is required for those browser-local preferences.
What is the difference between Full Screen Timer and Floating Timer?
Full Screen Timer is designed for a large, distraction-free display. Floating Timer is intended for a compact always-visible window while you work in other applications or tabs.

Put the Countdown Where Everyone Can See It

Choose a duration, start when you're ready, and switch to a large distraction-free display.