Free tool · No sign-up

Countdown Timer

Set hours, minutes, and seconds — or tap a preset — and this countdown timer counts down to zero and plays an alarm when it gets there. Pause and resume any time, add a minute mid-run, or go fullscreen so it reads from across a room. It runs entirely in your browser: free, instant, and no sign-up.

Hours

Minutes

Seconds

05:00Ready

Play an alarm when the timer reaches zero

Runs entirely in your browser — nothing is uploaded and nothing is saved, so reloading the page resets the timer. Keep this tab open while it counts down; the alarm needs sound enabled on your device.

Frequently asked questions

Type the hours, minutes, and seconds you want (or tap a preset like 5, 15, or 30 minutes), then press Start. The dial counts down to zero and sounds an alarm. Pause and Resume hold your place, +1 min extends a running timer, and Reset returns it to the duration you set.

Usually yes, as long as the tab stays open and your device is not muted. The timer works from a deadline rather than counting ticks, so a background tab that throttles timers still shows the correct remaining time when you come back. Some browsers hold audio until you interact with the page, so keep the tab visible if the alarm matters.

Yes — the Fullscreen button expands the dial to fill the screen, which is what you want on a projector or classroom display. Press Escape or the button again to come back.

It is free with no sign-up, and nothing is uploaded or stored. The timer lives only in the page, so reloading resets it to the default.