Timers
Online Stopwatch
Start the free online stopwatch with accurate timing, clear controls and optional sound or fullscreen.
Timer controls
Ready
- Sound
- Repeat timer
- Keep screen awake
Useful precision, without a control panel.
- Record running laps, practice rounds, presentation sections, experiments, or any repeated effort where both split and total time matter.
Laps remain on this device, the newest result stays easy to scan, and reset is always deliberate rather than automatic.
How to use the online stopwatch
- Press Start when the activity begins.
- Choose Lap whenever you need to record a split without stopping the clock.
- Pause to review the result, then reset or export the recorded laps when available.
Useful precision, without a control panel.
- Record running laps, practice rounds, presentation sections, experiments, or any repeated effort where both split and total time matter.
- Laps remain on this device, the newest result stays easy to scan, and reset is always deliberate rather than automatic.