Online Stopwatch
A browser stopwatch with milliseconds and lap tracking. Time everyday 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 Start or press Space outside other controls to begin timing.
Record laps
Hit the lap button to record split times. All laps are displayed with individual and total times.
Review results
Pause and review the split and total times. Reset clears the current session.
Why use ToolKnit Stopwatch?
100% Offline – Works Anywhere
No internet required after loading. Works on planes, in gyms, and anywhere without Wi-Fi.
Readable Time Display
Three millisecond digits aid reading, but browser scheduling, input delay and device sleep limit measurement accuracy. This is not certified competition or laboratory equipment.
Lap Recording
Record unlimited laps with split times. Easily compare intervals for training sessions or time trials.
Keyboard Shortcuts
Space starts or pauses, L records a lap, and R resets when focus is outside interactive controls. Held keys do not repeat these actions.
Pro Tips
- ● Press Space outside other controls to start or pause. Input and display delays still affect manual timing.
- ● Use lap recording for interval training —track each set or round individually.
- ● Switching tabs does not intentionally stop timing, but sleep, page discard or reload can interrupt a session. Keep this page open for important intervals.
- ● Great for cooking timers, science experiments, and presentation practice.