Skip to content
QuicklyTools

Countdown Timer

Simple online countdown timer with presets, pause/resume, alarm sound, tab-title display and notifications.

Runs in your browser
Loading tool…

About the Countdown Timer

Time cooking, workouts, exams, presentations or breaks. Set hours, minutes and seconds or tap a preset; the remaining time shows in the tab title so you can see it while working elsewhere, and a tone plays when time's up (plus a notification if you allow it).

The timer calculates the end time from the clock, so it stays accurate even if the browser throttles background tabs.

How to use it

  1. Set the time or choose a preset.
  2. Press Start (pause and resume any time).
  3. Hear the alarm when it reaches zero.

Good to know

  • Keep the tab open; closing it stops the timer.
  • Some browsers block sound until you've interacted with the page — clicking Start counts.

Frequently asked questions

Will it work if my computer sleeps?

The display catches up on wake, but the alarm can't play while the device sleeps.

Can I run several timers?

Open the tool in multiple tabs.

More utilities & converters →