Online alarms only ring while this tab stays open and your computer stays awake. Turn on Keep screen awake, plug in your laptop and turn the volume up. For waking up every morning, a phone alarm is still the safest backup.
Frequently asked questions
Will the alarm ring if my computer goes to sleep?
No. A sleeping computer cannot play sound. Keep the lid open, plug it in, and use the Keep screen awake switch, which stops the screen from turning off while the page is visible.
Can I set more than one alarm?
Yes. Add as many alarms as you need, each with its own label and sound, and switch them on or off individually.
Is TimerTab free?
Yes. Every clock, timer and alarm is free, with no account and no download. It works in any modern browser on desktop, phone or tablet.
Will it keep time if I switch tabs?
Yes. TimerTab counts from the real clock time instead of counting ticks, so it stays accurate when the tab is in the background and catches up instantly when you come back.
Does it work offline?
Yes. After your first visit the pages are cached on your device, so timers, the stopwatch and alarms keep working without an internet connection.