Online Stopwatch with Laps
Precise timing with lap recording for sports, workouts, and tasks. High-accuracy online stopwatch for professional timing.
Built With Care
“Browser-based timers rely on the system clock and JavaScript event loop. For sub-millisecond precision (benchmarking, scientific measurement), use dedicated hardware timers. For sports, workouts, and general timing, this tool is more than accurate enough.”
Online Stopwatch with Laps
Time events with millisecond precision using this free online stopwatch. Record unlimited laps, track fastest and slowest splits, and analyze performance — all running locally in your browser.
- 1Click the 'Start' button to begin timing.
- 2While running, click the 'Lap' button to record the current elapsed time without stopping the clock.
- 3Click 'Pause' to temporarily stop the timer.
- 4Click 'Reset' to clear all recorded data and return the timer to zero.
- 5The fastest and slowest laps are automatically highlighted in the lap record list.
- Millisecond Precision: High-accuracy timing engine for professional use.
- Unlimited Laps: Record as many intervals as needed for complex tasks.
- Visual Indicators: Color-coded fastest and slowest intervals for quick assessment.
- Clean Design: Distraction-free interface optimized for full-screen use.
- Precision Timing: Millisecond accuracy with lap recording.
Real Ways People Use This
Workout & Interval Training
Track set durations, rest periods, and total session time during HIIT, circuit training, or weightlifting routines.
Cooking & Baking
Time recipe steps accurately — from pasta boiling to bread proofing — without reaching for your phone timer.
Sports & Athletics
Record lap times during track practice, swimming laps, or cycling intervals to track improvement over sessions.
Productivity & Time Tracking
Measure how long tasks take to build accurate time estimates for project planning and client billing.
- Browser timers can drift slightly under heavy tab load. For critical timing, keep the tab in the foreground.
- Lap data is stored in memory only — refreshing the page clears all recorded laps.
- 1Start the timer in the foreground tab for maximum accuracy.
- 2Use the Lap button to record splits without stopping the clock.