Stopwatch
A precise online stopwatch with lap times.
00:00.00
Keyboard: Space start/pause · L lap · R reset
Laps
- No laps yet.
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the Stopwatch
Measure elapsed time and record lap intervals in the browser.
- 1 Click Start, or use Space when the timer controls have focus as intended.
- 2 Use Lap or L to record a split while the stopwatch runs.
- 3 Pause to inspect times and use Reset or R when you are ready to clear the session.
Example and practical tips
Record a lap at the end of each practice run to compare intervals.
Frequently asked questions
Will it behave like a dedicated timing device in the background?
Browser scheduling, sleeping devices and tab lifecycle can affect timing or display updates. Do not use it for precision-critical measurement.
Does Reset preserve laps?
Reset clears the current timing session. Copy any values you need before resetting or leaving the page.
Practical guides
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How to Use Stopwatch
Free online stopwatch with lap times. Start, pause and reset with one click or the keyboard, and record split intervals. Works in any browser.
Report an issue
Something broken or not quite right? Tell us and we will look into it.