Nothing uploaded
Stopwatch
Time anything to a hundredth of a second, record laps with their split times and see the fastest and slowest at a glance. Copy or download the laps for a spreadsheet.
Time
00:00.00
Press Start or the space bar
Laps
Press Lap while the stopwatch runs to record a lap.
| Lap | Lap time | Total |
|---|
Keyboard shortcuts
- Space or K
- Start or stop
- L
- Lap
- R
- Reset
- F
- Full screen (Esc to leave)
Shortcuts work anywhere on the page except while typing in a box.
What you type stays on this device. Nothing is uploaded.
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How to use the stopwatch
- Press Start (or Space) to start the stopwatch.
- Press Lap (or L) at the end of each lap: its time joins the table, with the fastest and slowest marked.
- Press Stop to pause and Reset to clear. Copy the laps or download them as a CSV file.
Questions
What’s the difference between the lap time and the total?
The lap time, or split, is how long that lap took on its own. The total is the time on the stopwatch when you pressed Lap.
Does it keep time in a background tab?
Yes. It records when it started instead of counting ticks, so it stays right in a background tab and while the computer sleeps. It even carries on if the page reloads.
How do I open the laps in a spreadsheet?
Press Download CSV and open the file in Excel, Google Sheets or Numbers, or press Copy as CSV and paste. Each row has the lap number, the lap time and the total, and both again in seconds for formulas.
Is anything sent anywhere?
No. The stopwatch runs in your browser. Its time and laps are kept on this device only, so a reload doesn’t lose them, and Reset clears them.