Timetaco - Create your own countdowns, as easy as 3, 2, 1
Online Alarm Kur - Free online alarm clock, set alarm easily on your computer using the internet alarm clock without downloading any software, wake up in time with the loud online alarm clock.
Coountdown - 3 2 1 ! Create day counter on menu bar macOS. 🚀
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
Padbury Clock Screensaver - Minimal screensaver for Mac
KukuKlok - Kukuklok is a free alarm clock available online and offline.