Stopwatch & Countdown Timer
Precise stopwatch with lap times, countdown timer with alarm, multiple simultaneous timers, interval training presets, and full-screen focus mode.
Free Online Stopwatch & Countdown Timer
Precise millisecond stopwatch with lap tracking, countdown timer with alarm sound, multiple simultaneous timers, and full-screen mode. Works on any device, completely free, no installation required.
Millisecond Stopwatch
Ultra-precise stopwatch accurate to the millisecond. Record unlimited lap times with split tracking, fastest/slowest lap highlighting, and average calculation.
Countdown Timer
Set any countdown duration from seconds to hours. Visual progress ring, colour-coded warning at 20% remaining, alarm sound when done.
Multiple Timers
Run multiple countdown timers simultaneously — perfect for cooking multiple dishes, managing classroom activities, or interval training.
Interval Training
Presets for HIIT, Tabata, Pomodoro, and more. Set work/rest intervals with automatic cycling and rep counting.
Full Screen Mode
Distraction-free full-screen display. Perfect for classrooms, gyms, presentations, or anywhere you need a large visible timer.
Keyboard Shortcuts
Space to start/pause, L to lap, R to reset, F for full screen. Control the timer without touching the mouse — ideal for athletes and presenters.