Online Stopwatch
Millisecond precision stopwatch with lap tracking. Perfect for timing workouts, events & tasks.
Ready to start
Space Start/Pause L Lap R Reset
Lap Times
| Lap | Split | Total |
|---|
How it works
Three simple steps —everything happens in your browser.
Press Start
Click the start button or press Space to begin timing with millisecond precision.
Record laps
Hit the lap button to record split times. All laps are displayed with individual and total times.
Review results
Stop the timer and review your recorded laps. Copy or reset to start fresh.
Why use ToolKnit Stopwatch?
100% Offline – Works Anywhere
No internet required after loading. Works on planes, in gyms, and anywhere without Wi-Fi.
Millisecond Precision
Accurate to the millisecond with a clean, distraction-free interface. Perfect for sports timing and experiments.
Lap Recording
Record unlimited laps with split times. Easily compare intervals for training sessions or time trials.
Keyboard Shortcuts
Use Space to start/stop and L for laps. Faster and more precise than clicking buttons.
Pro Tips
- ● Press Space to start/stop for faster, more precise timing.
- ● Use lap recording for interval training —track each set or round individually.
- ● The stopwatch keeps running even if you switch browser tabs.
- ● Great for cooking timers, science experiments, and presentation practice.