Time & Productivity
Stopwatch
Start, pause and record laps. Each lap shows its own split and the running total, timed to the hundredth of a second.
- Runs in your browser
- Keyboard: Space · L · R
Stopwatch
Ready
00:00:00.00
Laps
Press Lap while the stopwatch runs.
| # | Lap time (split) | Total |
|---|
How to use
Mouse, touch or keyboard.
- Space
- Start, pause and resume.
- L
- Record a lap while the stopwatch runs. The Lap key turns into Reset when you pause.
- R
- Reset to zero while paused. This also clears the laps.
- Esc
- Pause.
- Copy and export
- “Copy laps” copies tab-separated rows (Lap, Split, Total) that paste straight into a spreadsheet; “Download CSV” saves biberks-laps.csv.
Questions
How accurate is it?
It shows hundredths of a second. Time is measured from the browser’s steady clock rather than by counting ticks, so it stays right in background tabs. Very small differences from screen refreshes don’t add up.
What’s the difference between split and total?
The split is how long that lap took on its own. The total is the time on the stopwatch when you pressed Lap. Fastest and slowest laps are marked with text.
Does it keep running if I close the tab?
No. Nothing is saved on your device, so closing or reloading the page starts a fresh stopwatch. It does keep counting while the tab is open in the background.
What are the keyboard shortcuts?
Space starts and pauses, L records a lap while running, R resets while paused, and Esc pauses. Shortcuts are ignored while you’re typing in a field or when a button has focus, so nothing happens twice.