Free tool · no sign-up

Online Countdown Timer

A big, full-screen countdown you can read from across the room. Pick a preset or set your own minutes and seconds, press start, and get an audible beep when time is up — free, in your browser, no sign-up.

Presets
05:00

Ready

How to use it

  1. 1Pick a preset (1, 3, 5, 10, 15 or 25 minutes) or type your own minutes and seconds.
  2. 2Press Start. Use Pause and Reset any time, and the timer beeps when it reaches zero.
  3. 3Hit Fullscreen to put the countdown on the whole screen so everyone in the room can see it.

A countdown people can actually see changes how a room behaves. The moment a timer goes full screen, talks stay on schedule, Q&A stops running long, and nobody has to be the person tapping their watch. This free online countdown timer is built for exactly that: a clean, oversized MM:SS (or HH:MM:SS past an hour) display you can read from the back row, with simple Start, Pause and Reset controls.

It fits a lot of moments. Use it as a presentation timer to keep speakers and lightning talks on time, or as a classroom and exam timer where every student needs to see the same clock. Run it during live workshops and streams so segments stay tight, or drop it on screen for the breaks during meetings so everyone comes back together. Pick a preset for the common durations or set the exact minutes and seconds you need.

Everything runs free in the browser with an audible alarm — there is no install, no account and nothing leaves your device. When the countdown hits zero it plays a short beep through the Web Audio API and the display pulses red so the cue is impossible to miss, even from across the room or out of the corner of your eye.

Because it lives in a single browser tab, it is perfect when you can share or project that tab. When you need the timer floating over a live app, a deck or a demo instead of inside one tab, that is where a system-wide overlay takes over.

FAQ

Is this countdown timer free?
Yes, completely free and no sign-up. It runs locally in your browser and nothing is uploaded.
Does it beep when the timer is done?
Yes. When it reaches zero it plays a short beep using the Web Audio API and the display flashes red so you notice even if you look away.
Can I run it full screen?
Yes — press Fullscreen and the countdown fills the whole screen, big enough to read from across a room or project to an audience.
Will it keep running if I switch to another tab?
It keeps counting, but browsers throttle timers in background tabs, so the on-screen display may update less smoothly until you return. Keep the timer tab visible for the most accurate countdown.
Do I need to install anything?
No. It is a web tool that works in any modern browser with nothing to download or install.

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