Stopwatch

A stopwatch is a precise timing device essential for athletes, students, and professionals who need accurate measurement of elapsed time. Unlike your phone's built-in stopwatch, this browser-based version runs reliably even when the tab is in the background, making it perfect for timing training sessions, studying intervals, or monitoring how long tasks take without losing accuracy due to window focus.

Simply click Start to begin timing and watch the seconds accumulate. You can pause at any moment to freeze the time, then resume to continue from where you left off. The lap button lets you record split times without stopping the stopwatch, automatically logging each lap's duration so you can compare the speed of multiple intervals—ideal for running workouts or timed exam practice.

This tool works entirely in your browser with no installation required and no data collection, making it fast and private. Whether you're timing cooking, exercise, presentations, or work sessions, the stopwatch maintains accuracy even if you switch tabs, giving you the dependable timing you need for any task.