Online Timer
Free online timer with alarm sound. Set any time and start counting down — no downloads needed.
How to set an online timer: Click Start to begin a 5-minute countdown. Use the quick timer buttons below to switch to 1, 3, 10, 15, 25, or 60 minutes. The timer features an alarm sound when time is up and a full-screen mode for presentations.
About this timer
Our free online timer works right in your browser — no downloads or sign-ups needed. Set any duration from seconds to hours and start counting down. The timer features an alarm sound that plays when time is up, a full-screen mode for presentations and classrooms, and a clean visual display that's easy to read from a distance.
Use it for cooking, workouts, studying, meditation, presentations, classroom activities, or any task that needs a countdown. The timer continues running even if you switch browser tabs, so you'll always hear the alarm when time is up.
Frequently asked questions
Does the timer keep running if I switch tabs?
Yes. Our timer uses background-safe timing, so it continues counting down accurately even when you switch to another browser tab. The alarm will still sound when time is up.
Can I use the timer in full-screen mode?
Yes. Click the full-screen button to expand the timer to fill your entire screen. This is great for presentations, classrooms, and workouts where you need to see the timer from a distance.
Is the online timer really free?
Completely free. No sign-up, no downloads. Just open the page and start your countdown.