Countdown Timer & Stopwatch
Set a countdown or use the stopwatch with lap times. Works offline.
A reliable countdown timer and stopwatch is useful for cooking, workouts, presentations, exams, and time-boxing work sessions. This browser-based timer runs accurately in the foreground and background, with audio alerts and a clean, distraction-free interface that works on any device.
Countdown
Stopwatch
05:00
00:00.00
How to Use the Timer
- Choose mode — switch between Countdown and Stopwatch tabs.
- Set time — for countdown, enter hours/minutes/seconds or pick a preset.
- Start — click Start to begin. The timer stays accurate even if you switch tabs.
- Laps — on the stopwatch, click Lap to record split times.
Frequently Asked Questions
Does the timer work in background tabs? ▼
Yes. The timer calculates elapsed time from timestamps, so it stays accurate no matter what. When you return to the tab, the display updates instantly.
Will I hear an alert when countdown ends? ▼
Yes. An audio beep sounds and the display flashes when the countdown reaches zero.
Can I record lap times? ▼
Absolutely. Switch to Stopwatch mode and click "Lap" to record each split time. All laps are displayed with their individual and cumulative times.
Is this tool free? ▼
100% free, no signup needed. Runs entirely in your browser with zero data collection.