Free Online Stopwatch with Lap Tracking

Why Use an Online Stopwatch?

While your phone has a built-in stopwatch, an online version has unique advantages:

• Large display —Use your full computer screen for easy reading from across the room.
• Focused interface —The timer keeps the main controls together. Your device or browser can still show its own notifications.
• Keyboard shortcuts —Start, stop, and lap with keyboard keys for faster operation.
• Classroom/presentation use —A large browser window makes the timer easier to read. Use the browser's own fullscreen command if available; the tool has no separate fullscreen button.
• Always available —Works on any device with a browser. No app to install or update.

Features

• Millisecond display —The clock shows three decimal digits. This is useful for reading splits, but it does not certify millisecond measurement accuracy.
• Lap splits —Record individual lap times while the main timer continues running.
• Fastest/slowest highlights —Automatically highlights your best and worst laps in the list.
• Browser-sized display —Resize or maximize the browser window for easier viewing.
• Clean design —Distraction-free interface focused on the numbers that matter.

Common Uses

• Sports training —Time sprints, intervals, and rest periods. Track lap splits to measure improvement.
• Cooking —Time recipes that need precise durations (boiling eggs, steeping tea, grilling).
• Presentations —Keep track of speaking time during rehearsals and live presentations.
• Games & competitions —Time puzzle-solving, debate rounds, or board game turns.
• Informal observations —Useful for classroom demonstrations; use appropriate calibrated equipment when precise measurements matter.

Pro tip: Use the lap feature to track interval training. The fastest/slowest highlight helps you spot your best and worst sets at a glance.

Works Everywhere

The stopwatch runs entirely in your browser. It works on desktop, laptop, tablet, and phone. No installation, no account, no ads. Just open and start timing.