Digital Stopwatch & Lap Timer

Runs in your browserProductivity#Time#Utility

Stopwatch with lap times, keyboard shortcuts and CSV export. Keeps time in background tabs.

00:00.00

Space start or pause · L lap · R reset

How to use, limits & privacy

About Digital Stopwatch & Lap Timer

An online stopwatch with laps. It shows time to the hundredth of a second, records each lap at the moment you click, marks the fastest and slowest lap, and lets you copy the laps or download them as a CSV file. Keyboard shortcuts make it quick to use, and a running stopwatch keeps going if you reload the page. It runs in your browser.

How to Use

1

Start timing

Click Start or press Space. Press Space again (or click Pause) to stop, and Resume to carry on.

2

Record laps

Click Lap or press L each time a lap or split is done. The table shows each lap time, the total and the difference from the previous lap.

3

Save the results

Click Copy to paste the laps into a sheet or message, or Download CSV for a spreadsheet. Reset (or R) clears the time and laps.

Privacy & Processing

  • Mode: local
  • Files Leave Browser: Local tool processing; review details below
  • Max Input Size: Device memory limits
  • Account Required: No
  • Data Stored Locally: The current time and laps are saved in this browser (localStorage key toolkit360_stopwatch) until you click Reset.
  • Network Processing: Assets or models may require an initial download

Everything runs in your browser. Nothing is uploaded.

Rules & Limitations

  • Time is worked out from the clock, so it stays correct in background tabs and after the computer sleeps.
  • The screen shows hundredths of a second; the CSV file has milliseconds. Accuracy depends on when your click or key press reaches the browser.
  • The time and laps are saved in this browser, so a reload continues where you were. Another browser or device does not see them.
  • Pop out needs Chrome or Edge 116 or later on a computer.

Top Suggestions

  • Timing running laps and swimming lengths
  • Practising speeches, vivas and interview answers
  • Timing experiments in school labs
  • Measuring how long tasks take at work

Digital Stopwatch & Lap Timer FAQ

How do I record a lap?

While the stopwatch runs, click Lap or press L. The lap is taken at the moment of the click, and the newest lap appears at the top of the table.

Does the stopwatch keep running if I switch tabs or reload?

Yes. It stores the start time rather than counting ticks, so it stays correct in other tabs, and the time and laps come back after a reload.

What is the difference between lap time and split time?

Lap time is how long one lap took. Split time is the total time from the start to the end of that lap, shown here in the Total column.

Can I export my lap times?

Yes. Click Download CSV to save stopwatch_laps.csv with lap times and totals in milliseconds, or Copy to paste them as a table.

Is my data sent anywhere?

No. The stopwatch runs in your browser and its data stays on this device.

Related Tools

Productivity

Countdown Timer

Minutes timer with an alarm, and a countdown to any date such as Diwali, an exam or a wedding.

Runs locallyOpen tool
Productivity

Pomodoro Focus Timer

Pomodoro focus timer with custom focus and break lengths, session count, chime and pop-out window.

Runs locallyOpen tool
Audio

Audio/Video Transcriber

Turn speech in audio or video into text with timestamps, in Hindi, English and more. Nothing is uploaded.

Runs locallyOpen tool