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Clockwork
stopwatch & timer
build v6.0
Clockwork is a stopwatch and a countdown timer in one — time something to the hundredth of a second with lap splits, or set a countdown that chimes when it reaches zero. Nothing is uploaded.
00:00.00

Timing uses a high-resolution clock, so it stays accurate even if the tab is in the background. The timer's chime is generated on your device with the Web Audio API. Nothing is stored between visits. Everything runs on your device.