Online stopwatch

This page is a free online stopwatch that runs entirely in the current browser tab. Press Start and the large circular readout counts up from 00:00.00 as minutes, seconds, and hundredths of a second. FlashKit does not create an account for you, does not upload the time, and does not keep a history on a server. The clock is your device clock, advanced with requestAnimationFrame while the page is open.

Searchers looking for an online stopwatch, online timer, or simple lap timer usually want something they can open once and read from across a kitchen, gym, or desk. That is what this tool is. It is not a wearable, not a multi-lane race system, and not a certified meet clock. Refreshing or closing the tab clears the elapsed time and every lap you have not copied elsewhere.

The control row matches the buttons above the article. Start (green) begins a new run or resumes a paused one. While the clock is running that same control becomes Stop (red) and freezes the display without wiping it. Lap is enabled only while the clock is running; each press appends the current elapsed time as “Lap 1”, “Lap 2”, and so on in a scrollable list. Reset cancels the animation, returns the readout to 00:00.00, and empties the lap list.

Laps store the elapsed time at the moment you clicked, not the gap since the previous lap. If you need split times, subtract consecutive values yourself. The display never rolls into hours — ninety minutes appears as 90:00.00, not 1:30:00. There is no sound, no fullscreen mode, and no export button. Copy the lap list manually if you need a record.

Pick this stopwatch when you want short-session timing with hundredths and laps. Use the countdown timer when you have a future date and time to wait for. Use the count-up timer when you care about days and hours since a start date rather than a lap list. All three stay on your device; none of them sync across phones.

How to Use

  1. Open the page. The circle shows 00:00.00 until you press Start.
  2. Click Start. The green button becomes Stop and the readout begins updating.
  3. While it is running, click Lap to append the current elapsed time to the list under the buttons.
  4. Click Stop to pause. The time stays on screen. Start again to resume from that point.
  5. Click Reset when the session is over. That clears both the clock and every stored lap.

Key Features

  • Minutes, seconds, and hundredths of a second in a large mono readout
  • Start, Stop, Lap, and Reset — Lap stays disabled until the clock is running
  • Lap list shows elapsed time at each mark (not automatic splits)
  • Runs in this tab with no FlashKit account or upload
  • Sister countdown and count-up tools for date-based clocks

Common ways people use this stopwatch

  • Kitchen timing you control yourself — boil, rest, or cool-down intervals when you do not need an alarm at a future clock time.
  • Workout sets and rest periods. Mark a lap at the end of each set so you can glance back at how long the session has been running.
  • Speech, lesson, or presentation rehearsal. Start when you begin talking and stop when you finish; Reset before the next take.
  • Classroom quizzes, lab stations, or board games where a visible clock helps the room stay honest.
  • Informal sports drills and rec-league warmups. Do not use this page as the official clock for a sanctioned meet.

Practical timing tips

  • Keep the tab visible. Browsers often slow or pause requestAnimationFrame in background tabs, which can stall the display until you come back.
  • Copy laps before you refresh, close the tab, or clear site data. Nothing is written to FlashKit or to a file for you.
  • Subtract consecutive lap times if you need splits. The list is a series of elapsed marks, not automatic deltas.
  • There is no beep. If you need a signal at a future date, use the countdown timer — and even that page has no alarm, so plan to watch it.
  • Long sessions stay in minutes. Two hours shows as 120:00.00. For multi-day elapsed time, switch to the count-up timer.

Accessibility notes

  • Start, Stop, Lap, and Reset are native buttons, so they are reachable with a keyboard and expose their labels to assistive technology.
  • The time is a large monospace number. Color on the buttons (green start, red stop, blue lap) is a hint, not the only cue — the words stay visible.
  • Lap uses the browser disabled state when the clock is stopped. There is no live region that announces each tick, so do not expect a screen reader to speak every hundredth.
  • If you need the clock on a shared display, zoom the page or use the browser’s full-page zoom. The tool itself does not offer a dedicated fullscreen or high-contrast theme beyond the site light/dark setting.

Frequently Asked Questions

Is this an online timer or a stopwatch?

This page is a stopwatch: it counts up from zero with Start, Stop, Lap, and Reset. People also search “online timer” for it. If you need time remaining until a date, use the countdown timer. If you need days and hours since a start date, use the count-up timer.

How accurate is the online stopwatch?

It is good enough for kitchen, desk, classroom, and informal sports timing. The display updates from your device clock while the tab is active. It is not a certified race meet clock and should not be used where a protest or record attempt depends on official timing.

Do lap times save after I close the tab?

No. Laps live in the current page only. Refreshing, closing the tab, or clearing site data removes them. Copy the list if you need a record.

Can I time hours or set an alarm?

Hours are shown as extra minutes (61:00.00 after one hour). There is no alarm, vibration, or notification. Watch the display, or use a device clock with an alarm if you cannot stay on the page.

Does FlashKit upload my times?

No. The stopwatch never sends elapsed time to a FlashKit server. Ads on the page are separate from the clock.

Will it keep running if I lock my phone?

Not reliably. Mobile browsers often freeze background pages. Leave the tab in the foreground if the displayed time matters.

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