Online Stopwatch

    A free, accurate online stopwatch with lap times. Start it in one click. No signup, nothing to install.

    Runs from your device clock, records lap splits, and keeps going in a background tab.

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    How to use the online stopwatch

    1. Press Start to begin timing.
    2. Tap Lap to record split times during a session.
    3. Press Stop to pause, or Reset to start over.

    What people use it for

    • Running, swimming and cycling intervals
    • Science and lab experiments
    • Public speaking practice
    • Board games and trivia

    Frequently asked questions

    Try other timers