Free Countdown Timer & Stopwatch
Set a countdown or run a stopwatch — stays accurate even if the tab is in the background.
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Frequently Asked Questions
Will the timer stay accurate if I switch tabs?
Yes. Rather than just counting down once a second, the timer compares the current time against the moment it started, so it stays accurate even if the browser throttles background tabs.
Does it play a sound when the countdown finishes?
It shows a clear "Time's up!" message and the display flashes. Browsers block audio from playing without a prior user interaction on the page, so keep the tab active near the end if you want to rely on it as an alarm.
Can I use both the timer and stopwatch at once?
Switching tabs resets whichever mode you're leaving — use one at a time. Reset explicitly before switching if you want a clean start.
Is my data sent anywhere?
No. Everything runs locally in your browser. Nothing is transmitted or stored.