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A free, precision online stopwatch with lap tracking and split times. Automatically highlights your best and worst laps. Start, pause, resume, and reset with simple controls. Perfect for sports timing, science experiments, classroom activities, and meetings. Go fullscreen for maximum visibility on any screen, TV, or projector. Customize with 60+ fonts and color themes.
Yes. Click the Lap button (or press L) while the stopwatch is running to record split times. Each lap shows the lap number, lap duration, and cumulative time. The fastest and slowest laps are automatically highlighted in green and red.
Yes. Click the fullscreen button in the toolbar or press F on your keyboard. The stopwatch fills your entire screen with a large, easy-to-read display—ideal for sports timing, presentations, and science experiments.
The stopwatch uses the browser's high-resolution performance timing API (performance.now()), which provides sub-millisecond accuracy. It stays accurate even when the browser tab is in the background.
Yes. Use the bottom toolbar to choose from 60+ fonts, select a preset color theme or create custom colors, and adjust the text size. Your preferences are saved automatically.
Yes, completely free with no sign-up or download required. All features including lap tracking, fullscreen mode, custom fonts and colors, and sharing are available at no cost.