Online Stopwatch
Measure time with millisecond precision, record unlimited laps, view statistics, export results, and use fullscreen mode.
Stopwatch
High precision stopwatch with unlimited lap recording.
Elapsed Time
00:00:00.000
Ready
Total Laps
0
Fastest Lap
—
Slowest Lap
—
Average Lap
—
Total Time
00:00:00.000
Lap History
| Lap | Lap Time | Total Time |
|---|---|---|
| No laps recorded yet. | ||
100% Private Stopwatch
Your stopwatch runs entirely in your browser using the browser's high-resolution timer. Laps, elapsed time and settings remain on your device using localStorage and are never uploaded to our servers.
Features
Everything You Need In A Professional Stopwatch
Perfect for sports, workouts, presentations, laboratories, classrooms and everyday timing tasks.
Millisecond Precision
Accurate timing using the browser's high-resolution performance timer.
Unlimited Laps
Record as many lap times as you need without any limitations.
Lap Statistics
Instantly view fastest, slowest, average and total lap times.
Auto Save
Continue where you left off with automatic browser storage.
How It Works
Time Anything In Three Steps
Start
Click Start to begin measuring elapsed time with millisecond accuracy.
Record Laps
Save intermediate lap times without stopping the stopwatch.
Analyze
Review lap statistics, export results or print them for later reference.
Stopwatch Guide
Why Use An Online Stopwatch?
An online stopwatch provides accurate elapsed-time measurement without installing software. Whether you're timing races, workouts, classroom activities, presentations or scientific experiments, a browser-based stopwatch offers convenience, portability and precision.
Recording lap times makes it easy to compare performance, identify trends and improve consistency. With automatic saving, fullscreen mode and export options, this stopwatch is suitable for both casual and professional use.
Benefits Of This Stopwatch
High Accuracy
Track elapsed time with millisecond precision.
Unlimited Lap Recording
Save every lap for complete performance analysis.
Full Screen Display
Perfect for competitions, training and presentations.
Export & Print
Save lap history as JSON or print detailed results.
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Browse →FAQ
Frequently Asked Questions
Start Timing With Precision
Measure every millisecond, record unlimited laps and analyze your performance with our free professional stopwatch.
Launch Stopwatch →