Countdown Timer
Set a countdown timer with audio alert and progress bar
00:05:00
Tap to start
hrs
: min
: sec
00:00:00
0
00:00:00
About Countdown Timer
Set hours, minutes, and seconds, then start your countdown. Features a visual progress bar, quick-set presets, and an audio alert when time is up.
- Set hours, minutes, and seconds precisely
- Visual circular progress bar shows time remaining
- Audio alert using Web Audio API when timer ends
- Quick-set preset buttons for common intervals
- Continues running accurately in background tabs
Everything runs in your browser — your data never leaves your device.
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How to Use Countdown Timer
- Set the hours, minutes, and seconds or use a preset
- Click Start to begin the countdown
- The timer will play a sound and flash when it reaches zero
Frequently Asked Questions
Will it make a sound when done?
Yes. The timer plays a three-tone ascending beep using the Web Audio API when the countdown reaches zero. Make sure your volume is on.
Can I pause and resume?
Yes. Click Pause to stop the countdown and Start/Resume to continue from where you left off.
Does it work in the background?
The timer continues running if you switch tabs, though the display updates when you return.
