Online Stopwatch — Free, Accurate, With Laps
Browser stopwatch accurate to the millisecond. Record lap times, pause, resume and reset.
Stopwatch in your browser
No app to install, no signup. Start, stop, lap and reset. Uses requestAnimationFrame for smooth millisecond accuracy. Works on any device.
How to use the Stopwatch
Takes about a minute. No signup, no download, your data stays in your browser.
- 1Open the tool. Scroll up to the Stopwatch above — it loads instantly in your browser, no install needed.
- 2Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
- 3Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.
Frequently asked questions
Common questions about the Stopwatch.
Is the Stopwatch free to use?
Yes. The Stopwatchon 7BusyBoss is completely free — no signup, no paywall, no usage cap. We do recommend paid alternatives in a sidebar card, but the core tool stays free.
Do I need to sign up to use the Stopwatch?
No. The Stopwatchworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.
Does the Stopwatch work on mobile?
Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.
Is my data safe when I use the Stopwatch?
Yes. The Stopwatchruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.
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