ToolkitBook
Track time using multiple independent stopwatches. Log lap and split intervals for each timer and copy your results directly to your clipboard. The display remains accurate even when switching tabs or minimizing the window. No installation or account creation is necessary.
Select + Add Stopwatch to create additional timers. Each instance operates independently with its own Start/Stop, Lap, and Reset controls, allowing you to monitor several different activities simultaneously.
Click Start on any stopwatch card, or press the Space bar when that card is focused. Click Stop (or press Space again) to pause the clock. Press Start to resume from the same point. The Reset button clears the current time and all recorded laps.
The Lap button logs the current time while the clock continues to run. Each entry displays two metrics: the time elapsed since the previous lap (the split) and the total elapsed time. Use this to measure specific segments of a longer activity.
The Lap Times panel located below the timers includes a dedicated tab for each stopwatch. Click a tab to review the laps for that specific timer. The tab label displays the stopwatch name and the total lap count.
Yes. Click the × icon in the top-right corner of the stopwatch card. This will remove the timer and all of its recorded lap data.
Yes. You can press the Lap button as many times as necessary. Laps appear in the Lap Times panel under the corresponding tab, with the most recent entries at the top. Each row displays the lap number, split time, and cumulative time.
Yes. The stopwatch references your system clock rather than relying on a simple internal counter. Consequently, the elapsed time remains accurate even if you switch browser tabs, open other applications, or minimize the window.
The display tracks centiseconds (hundredths of a second) and updates every 10 milliseconds. Timing is derived from the system clock and is typically accurate to within a few milliseconds. This is sufficient for workouts, cooking, studying, or presentations, though it is not intended for certified competitive sports.
Yes. Click any row in the lap list to copy the total time to your clipboard in HH:MM:SS.cc format.
All data will be cleared. This tool operates entirely within your browser and does not use server-side storage. Be sure to copy any necessary lap times before leaving or refreshing the page.