Stopwatch

This stopwatch provides millisecond-precision timing directly in your browser using the high-resolution Performance API. Whether you are timing workouts, cooking, experiments, or any activity where precision matters, this tool delivers accurate results without any installation. The lap feature allows you to record split times while the main timer keeps running. Each lap is displayed in a table showing the lap number, lap split time, and cumulative elapsed time — making it easy to compare individual intervals and track progress across multiple laps. All timing happens entirely client-side with no server round-trips. The clean, minimal interface updates 100 times per second for smooth display, and lap data can be cleared with a single click to start a fresh session.