Stopwatch

Online stopwatch with lap times.

Stopwatch

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About Stopwatch

Online stopwatch with lap times. Start, stop, and record lap times. Perfect for timing activities, workouts, and experiments. Displays hours, minutes, seconds, and milliseconds.

Key Features

  • Millisecond precision
  • Lap time recording
  • Lap comparison (fastest/slowest)

How to use Stopwatch

  1. Click 'Start' to begin timing.
  2. Click 'Lap' to record lap times.
  3. Click 'Stop' to pause.
  4. Click 'Reset' to clear.

Privacy & Security

All processing happens directly in your browser. Your data never leaves your device and is never uploaded to any server. We have no access to the files you process or the data you enter. This ensures complete privacy and security.

Frequently Asked Questions

How accurate is the stopwatch?

It updates every 10ms (100 times per second) for smooth, accurate timing.

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