The stopwatch buried in Google’s Clock app is the tool most phones already have, but reaching it still means unlocking your phone, finding the app, and tapping through to the right tab. Sometimes you just want a stopwatch running in the tab you already have open. We built Lap, a free browser stopwatch with lap splits, and it is already at 00:00.00 the moment this page loads.
Start the stopwatch now
Hit Start. There is nothing to configure first.
How to use it
Tap Start and the display counts up in hundredths of a second, driven by your browser’s own clock so the numbers stay accurate over long runs instead of drifting the way a simple timer loop can. While it is running, tap Lap to log a split; each entry shows that lap’s time and the running total, with the fastest and slowest laps of the run labeled once you have logged at least two. Tap Stop to freeze the display, then Reset to zero everything out and start again.
On a keyboard, every control is a normal button, so Tab and Enter work exactly as you would expect. Switch tabs mid-run and the count keeps going in the background exactly as a real stopwatch would; come back and the display just catches up. Your last completed run is remembered on your device between visits, but nothing you time is ever sent anywhere.
How it compares to Clock
Lap does one job: start, stop, lap, reset, with millisecond precision and a clean lap list. Google’s Clock app does that too, plus alarms, a countdown timer, a world clock across time zones, and bedtime scheduling, all tied into your phone’s notifications so a stopwatch can keep running even if you lock the screen or switch apps entirely.
That last part is the real gap. A browser tab can lose its timer the instant you close it, while the Clock app’s stopwatch survives a locked screen, a phone call, or days of switching between other apps. We kept the part people actually search for: a stopwatch that is instantly there with clean lap splits, no install and no account.
Use Lap when you want a quick timed run, a workout set, or a set of lap splits without leaving your browser. Use Clock when you need the stopwatch to survive a locked phone over a long session, or when you also want alarms and a countdown timer in the same place.
Get the full app
Clock is Google’s built-in Android app for alarms, timers, a stopwatch, and a world clock, and it comes preinstalled on most Android phones.
Frequently asked questions
Can I use a stopwatch in my browser without downloading anything?
Yes. Lap runs entirely in the page above; there is nothing to install and no account to create. Tap Start and it begins timing immediately, and it works the same way on a phone, tablet, or desktop browser.
How accurate is an online stopwatch?
Lap reads your device’s own high-resolution clock on every frame rather than counting in fixed intervals, so it does not drift the way a simple setInterval timer can over a long run. The display updates roughly 60 times a second and shows time down to the hundredth of a second.
Does it work offline, and does it save my data anywhere?
Once the page has loaded, timing itself needs no internet connection. Your most recent completed run is saved to your device’s local storage so you can see it again after closing the tab, but nothing you time is ever uploaded, logged, or sent to a server.
Is this the official Google Clock app?
No. Lap is an original tool we built, inspired by the stopwatch tucked inside Google’s Clock app. It is not affiliated with, endorsed by, or connected to Google. If you want a stopwatch that keeps running behind a locked screen, plus alarms and a countdown timer, get the official Clock app from the store above.
Is it really free?
Yes, with no signup, no trial period, and no ads inside the tool itself.
