The free Countdown Timer & Stopwatch
Free online countdown timer with alarm and a precise stopwatch with laps. Set hours, minutes and seconds, or count up.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
See it in action
Sample input: Hours = 0; Minutes = 5; Seconds = 0. Pressed Countdown timer.
What is the Countdown Timer & Stopwatch?
Set a countdown for cooking, workouts, exams, presentations or breaks, and get a sound alert when it reaches zero. Quick presets start common timers in one tap.
The stopwatch counts up to the hundredth of a second and records lap times, useful for running, swimming, speeches and experiments. The page title shows the running time so you can keep the tab in the background.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Audible alert at zero.
Precise to 0.01 second.
1, 5, 10, 15, 30 and 60 minutes.
See the time without opening the tab.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
How it compares
A plain look at this tool next to the usual alternative.
| This calculator | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
Will the timer keep running if I switch tabs?
Yes. It calculates from the system clock, so it stays accurate in the background.
Does it make a sound?
Yes, a short alarm plays when the countdown finishes. Allow sound for this site.
How accurate is the stopwatch?
It is accurate to about a hundredth of a second.
Can I set a timer longer than an hour?
Yes, up to 99 hours.
Does the timer work in the background?
Mostly, but keep the tab open for accuracy.
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Try the Countdown Timer & Stopwatch now
Online countdown timer, stopwatch and lap timer. Free to use.
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