Online Countdown Timer
Set a clean, accurate countdown for work, study, cooking or exercise.
05:00
Ready
Your privacy is safe, this tool runs entirely in your browser. Nothing you enter is uploaded to or stored on our servers.
More Time Tools
How to use Online Countdown Timer
- 1Enter hours, minutes and seconds or choose a preset.
- 2Select Start to begin the countdown.
- 3Pause, resume or reset whenever needed.
- 4Keep the tab open to hear the completion alert.
A Reliable Browser Timer
The timer uses a target clock time instead of subtracting one second per interval. That keeps it accurate when the browser reduces background-tab activity. Presets cover common focus, exercise and kitchen timings.
Frequently asked questions
Does the timer keep running in another tab?
Yes. It calculates from a target timestamp, so it stays accurate when the tab is in the background.
Can I pause the timer?
Yes. Pause freezes the remaining time and Start resumes from the same point.
Will it make a sound?
Yes. The browser plays a short alert when time reaches zero after you have interacted with the page.
Does the timer work offline?
Yes, after the page has loaded. All timer logic runs in your browser.