Free Online Stopwatch with Lap Times

Need to time a workout, a study sprint, a recipe, or a race? This free online stopwatch counts in milliseconds, records unlimited lap splits, and automatically highlights your fastest and slowest laps. Press the spacebar to start and stop — no sign-up, no app download, and it works offline once loaded.

How it works

Hit Start (or press the spacebar) and the timer counts in hundredths of a second. Press Lap (or L) any time to record a split without stopping the clock — your fastest lap gets a 🥇 highlight and your slowest a 🐢 so you can spot trends instantly. Reset (or R) clears everything, and Copy laps exports your splits as plain text.

Everyday uses

• Workouts — time intervals, rest periods, and track whether your mile splits are improving.
• Study & Pomodoro sessions — run focus sprints and log lap marks at each chapter or problem set.
• Cooking — time multi-step recipes: lap at each stage so nothing overcooks.
• Races & sports — a free lap timer for coaches, runners, and swimmers without buying a device.
• Presentations & speeches — rehearse with lap marks at each section to nail your timing.

Tip: the stopwatch keeps running if you switch tabs — the display just updates when you come back, and lap times stay accurate.

FAQ

Is this online stopwatch really free? Yes — 100% free forever, unlimited laps, no sign-up, no credit card. It runs entirely in your browser.

How accurate is it? It measures with your device’s high-resolution timer (millisecond precision) and the display updates about 30 times per second. Great for training and everyday timing — not certified for official competition.

Do the keyboard shortcuts work on mobile? The shortcuts are for desktop keyboards. On phones and tablets, use the big on-screen Start, Lap, and Reset buttons — they’re thumb-friendly.

Will it keep running if I switch tabs? Yes — the underlying timer keeps counting. The display refreshes when you return, and lap times remain accurate.