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Countdown Timer
Set a time, choose how long the alarm should sound, and optionally loop the session. Runs fully in your browser. Need a stopwatch?
00:00
0.0s
Help & FAQ — Countdown Timer
How to use
- Set the countdown duration or choose from a preset.
- Pick an alarm sound and whether it repeats.
- Start the timer; pause or reset anytime.
Use cases
- Set a quick countdown for cooking.
- Time focus sprints during work.
Tips & FAQs
- Does it work in the background?
- Audio alerts continue if the tab stays open, but browsers may throttle background timing.
- Can I run multiple timers?
- Open additional tabs or use the interval timer for complex routines.
Formats & limits
- Requires browser audio for alarms
- Wake-lock optional to prevent screen sleep
- Precision limited by browser timing APIs
Privacy
All timing happens locally; no data leaves your device.
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Updated
15 October 2025