Countdown Timer
Millisecond precision countdown with audio alert. Set any duration and let it count down for you.
Set Countdown Duration
Hours
Minutes
Seconds
Set your countdown time
Space Start/Pause R Reset
How it works
Three simple steps —everything happens in your browser.
Set your time
Enter hours, minutes, and seconds for your countdown. Use presets for common durations.
Start countdown
Press start and watch the timer count down with a visual progress ring.
Get alerted
An alarm sounds when time is up. Reset and start again as many times as you need.
Why use ToolKnit Countdown Timer?
100% Browser-Based
No app to install, no account needed. Just open and start timing —works on any device with a browser.
Visual Progress Ring
See your remaining time at a glance with a smooth animated progress ring. Great for presentations.
Quick Presets
One-click presets for common durations: 5, 10, 15, 25, 30, and 60 minutes. Start timing instantly.
Audio Alert
A clear alarm sounds when your countdown reaches zero —never miss your deadline.
Pro Tips
- ● Use the 25-minute preset for Pomodoro study sessions —proven to boost focus.
- ● Great for cooking and baking —set multiple timers for different dishes.
- ● The timer keeps running in the background even if you switch tabs.
- ● Use during presentations to keep your talk on schedule with the visual progress ring.