Everyday Tools
Stopwatch
- Browser-based
- No signup
Start, pause, reset, and record lap times with a browser stopwatch. Timing runs entirely in your tab.
100% Client-Side
Your data never leaves your computer.
How to use this tool
1. Click Start to begin timing. 2. Click Lap to record split times without stopping. 3. Click Stop to pause the main timer. 4. Click Reset to clear. 5. Lap times stay visible until you reset.
Worked example
Example: start a run, tap Lap at 1:32 and 3:04, then Stop at 5:00—splits help compare segment pace.
How it works
Start, pause, reset, and record lap times with centisecond precision. The stopwatch runs entirely in your browser tab.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
Does the stopwatch run in the background?
It runs in your browser tab. Keeping the tab open gives the most reliable timing.
How precise are lap times?
Lap and elapsed times are shown to centiseconds while the tab stays active.
Is Stopwatch free to use?
Yes. Utilnivo tools are free to use and do not require an account.
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