Tools
Online Countdown
A countdown in a browser tab: set the minutes, share the screen, and let everyone watch the same clock.
Online Countdown
15:00
Ready
- Ends at
- —
- Elapsed
- 00:00
Settings
Space start or pause · R reset · F full screen
What this one is for
- Runs in any modern browser
- Share the screen in a call
- Keeps time in the background
Sharing a browser tab in a call puts everyone on the same clock, which works better than announcing how many minutes are left every few minutes. It opens at 15:00; change that with the chips under the dial.
Worth knowing
- Share the tab in a call and everyone watches the same number.
- No account, so nobody has to sign in to see it.
- Keeps time in the background if you switch to your slides.
Getting the most from the online countdown
- Open it and press startNo account, no install, nothing to configure before the countdown runs.
- Make it as big as you needFull screen gives edge-to-edge digits, readable from the back of a room or across a gym.
- Set it once and bookmark itAdding
?m=and a number to the address fixes the length, so the bookmark opens ready to go.
Related timers
- Online Timer
- Simple Timer
- Fullscreen Timer
- Large Timer
- Visual Timer
- Timer With Alarm
- Timer With Sound
- Stopwatch
Questions people ask
Can I use this countdown in a video call?
Yes. Share the tab or the window and everyone in the call sees the same countdown, which is far easier than announcing the time remaining.
Does it work offline?
After your first visit, yes. The page is cached by your browser, so it opens and runs without a connection.
Is the online countdown really free?
Yes, for personal and commercial use, with no sign-up. Use it in classrooms, gyms and streams without asking.