Online stopwatch with lap timer
A simple, accurate online stopwatch with a built-in lap timer. Start, pause and resume the clock, and tap Lap to record split times for workouts, races, cooking, study sessions or any task you want to measure.
Each lap shows both the lap time (the duration of that segment) and the running total. When you have more than one lap, the fastest lap is highlighted in green with a ▲ and the slowest is marked with a ▼, so you can compare your splits instantly.
Timing uses the browser’s high-resolution performance clock, which stays accurate to the millisecond. It is privacy-first: everything runs locally and nothing is stored or uploaded.