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Online Stopwatch with Lap Times

Time anything to the hundredth of a second, record laps with a single key, and see your fastest and slowest lap at a glance. The stopwatch keeps counting even if you switch tabs or reload the page.

Elapsed time

Elapsed time

00:00.00

Keyboard shortcuts:Spacestart / pauseLlapRreset

Laps

Press Lap (or the L key) while the stopwatch is running to record a lap.

The timer is saved in this browser, so it keeps its time if you reload or close the page.

How to use the stopwatch

  1. Press Start (or the Space key) to begin timing.
  2. Press Lap (or L) each time you finish a lap, a question or a round. From the first lap on, the time of the lap in progress appears under the main display.
  3. Press Pause to stop the clock and Resume to carry on from the same time.
  4. Press Copy laps to copy the lap table, or Reset (R) to clear everything and start again.

Features

  • Hundredths of a second on large, easy-to-read digits that don't jump around as they change.
  • Unlimited laps with lap time and total time, newest lap on top.
  • Fastest and slowest lap highlighted in green and red.
  • Keyboard shortcuts: Space to start and pause, L for a lap, R to reset.
  • Runs in the background: switching tabs doesn't slow the stopwatch down, and the tab title shows the running time.
  • Survives a reload: the time and laps are saved in your browser.
  • Copy laps as text that pastes neatly into a spreadsheet.
  • Works on phones with big buttons that are easy to hit with a thumb.

Why use Fileora's online stopwatch

Many browser stopwatches count by adding a small step every few milliseconds. Browsers slow those steps down when a tab is in the background, so the timer quietly loses seconds. This stopwatch works differently: it remembers the moment you pressed Start and compares it with your device's clock, so the reading is correct whether you watched it the whole time or came back an hour later.

It is free, has no sign-up and shows no pop-ups over the timer. Nothing is sent to a server. Your times and laps stay in your own browser.

Ideas for using lap times

  • Running and swimming: press Lap at each marker to see whether you are holding an even pace. A slowest lap near the end usually means you started too fast.
  • Exam practice: press Lap after each question to find out which question types take you longest.
  • Presentations and speeches: press Lap at the end of each section to check you are keeping to your time plan.
  • Cooking and experiments: record each stage of a process without writing times down.
  • Workouts: time sets and rests and paste the results into your training log.

Tips for accurate timing

Press the buttons at the moment the event happens rather than watching the digits. On a computer the keyboard is usually quicker and more consistent than a mouse, so keep a finger on Space and L. If you need to time several people, write down each person's total when they finish and use the lap table to compare them.

Related timers

If you need to count down instead of up, the countdown timer sounds an alarm when time runs out. For focused study or work sessions with planned breaks, try the Pomodoro timer. To test how fast you type against the clock, use the typing test.

Frequently asked questions

How accurate is this online stopwatch?

The stopwatch reads the time from your device's clock whenever it draws the display, rather than adding up ticks. That means it doesn't drift or fall behind when the browser is busy or the tab is in the background. The display shows hundredths of a second, which is finer than human reaction time when you press a button.

Does the stopwatch keep running if I switch tabs or lock my phone?

Yes. The start time is stored, so the elapsed time is always correct when you come back. While the tab is hidden, the browser tab title keeps showing the running time, updated about once a second.

What happens if I reload or close the page?

The stopwatch and your laps are saved in this browser's local storage. When you open the page again, a running stopwatch shows the full time that has passed, and a paused one shows exactly where you stopped. Press Reset to clear it.

What is the difference between lap time and total time?

Lap time is how long that single lap took, measured from the previous lap press. Total time is the stopwatch reading at the moment you pressed Lap. For a 400 metre run in four 100 metre laps, the lap times tell you your pace for each 100 metres and the last total is your finishing time.

How are the fastest and slowest laps chosen?

Once you have at least two laps of different lengths, the lap with the shortest lap time is marked Fastest in green and the one with the longest lap time is marked Slowest in red. If all laps are exactly the same, nothing is highlighted.

Can I use the stopwatch with the keyboard?

Yes. Press Space to start and pause, L to record a lap and R to reset. The shortcuts are ignored while you are typing in a text field, so they never get in the way.

Can I copy my lap times into a spreadsheet?

Press Copy laps. The lap number, lap time and total time are copied as tab-separated text, so they paste straight into separate columns in Excel, Google Sheets or Numbers.

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