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Free Online Stopwatch — Precise Lap Timing in Your Browser

Precise online stopwatch with lap timing.

About Stopwatch

A precision stopwatch with lap timing built right into your browser. Start, pause, and record split times for each lap — perfect for tracking running intervals, swimming laps, speech practice sessions, or measuring how long a task actually takes. All lap times are displayed in an easy-to-read list you can reference or screenshot.

How to Use Stopwatch

  1. 1Click Start to begin the stopwatch
  2. 2Press Lap to record a split time without stopping the main timer
  3. 3Pause and resume as needed — all lap times are preserved
  4. 4View all recorded lap times and cumulative totals in the lap list

When to Use Stopwatch

  • Timing running splits during track workouts
  • Measuring how long real-world tasks actually take
  • Speech and presentation practice with split-time tracking
  • Swimming, cycling, and other lap-based sports timing

Frequently Asked Questions

Does the stopwatch run in the background if I switch tabs?
Yes — the stopwatch continues running accurately even when the tab is not active, using system time rather than a tick counter.
Can I export my lap times?
You can screenshot or copy the lap times from the list. Direct CSV export is available in supported browsers.

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