Stopwatch & Lap Timer
Millisecond split stopwatch and countdown timer with recorded laps and lap time export.
- 100% free
- Private in browser
- No signup
- No watermarks
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About Stopwatch & Lap Timer
Use this high-accuracy online stopwatch and lap timer for workouts, running, studying, cooking, and productivity. Record unlimited laps with split times and time differences, and export your session times directly to clipboard.
How to use Stopwatch & Lap Timer
- Click Start to begin timing with millisecond precision.
- Click Lap to record intermediate split times and lap intervals.
- Click Pause to halt timing temporarily or Reset to clear the session.
- Export or copy recorded laps for your records.
Key features
- Millisecond precision time tracking
- Unlimited lap and split recording
- Shows fastest lap, slowest lap, and average lap time
- One-click export of lap history
- Clean fullscreen-ready visual display
Frequently asked questions
- Is the stopwatch accurate?
- Yes, it uses performance.now() and browser high-resolution timestamps to prevent drift.
- Does the timer keep running if I switch tabs?
- Yes, time calculation is delta-based and continues accurately even when switching tabs.