Online Stopwatch
A clean, free stopwatch with lap times. Press Start (or the spacebar) to begin.
How the stopwatch works
This is a precise, browser-based stopwatch — nothing to install. Click Start to begin timing and Stop to pause; the display keeps hundredths of a second. Hit Lap to record a split without stopping the clock — each lap shows both the lap time and the total elapsed time, newest at the top. Reset clears everything back to zero.
Keyboard shortcuts: Space start/stop · L lap · R reset. Handy for workouts, classrooms, science experiments, cooking and games.
Need to count down to a length of time instead? Use the online timer. Counting down to a date or event? Make a countdown.
Stopwatch FAQ
Is the online stopwatch free? Yes — free, with no sign-up and no app to install.
Does it record lap and split times? Yes — tap Lap to record a split without stopping the clock; each lap shows the lap time and the total elapsed time.
Can I control it with the keyboard? Yes — Space starts and stops, L records a lap, and R resets.