Set a countdown, time a lap, or wake up on schedule — right in your browser, with sound and notifications.
4TimerOnline keeps the three things people reach for most in one place. The countdown timer counts down from any duration and rings when it hits zero. The stopwatch counts up with lap times. The alarm rings at a set time of day. Everything runs locally, so the timer keeps going even if your connection drops, and nothing you type is sent anywhere.
Yes. The countdown is time-based, so it stays accurate in the background and the alarm sounds when it reaches zero. The browser tab title also shows the live countdown.
No — the sound alarm works on its own. If you allow notifications, you also get a desktop pop-up when the timer finishes.
Yes, a built-in beep generated in your browser — no file to download. It repeats until you press “Stop alarm”.