Online Stopwatch
Precise online stopwatch with lap tracking. Start, stop, and record laps with millisecond precision. Keyboard shortcuts and lap analysis — completely free.
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Space = Start/Stop · L = Lap · R = Reset
About This Tool
- Millisecond precision timing for accurate measurements.
- Record unlimited laps with delta and total time tracking.
- Keyboard shortcuts for hands-free operation.
- Completely free, no registration required.
Frequently Asked Questions
An online stopwatch is a browser-based timing tool that lets you measure elapsed time with millisecond precision. No installation required — works directly in your browser on any device.
Click the Lap button or press L to record a lap. Each lap shows the delta time (time since the last lap) and the total elapsed time. The best and worst laps are highlighted in green and red.
The stopwatch updates every 10 milliseconds, providing centisecond precision (1/100th of a second). This is sufficient for most timing needs including sports, cooking, and productivity tracking.
Yes, completely free with no registration. Use the stopwatch as many times as you need with no limits.