Stopwatch
Precise stopwatch with lap tracking, keyboard shortcuts, and a large time display.
00:00:00.00
Space Start/Stop · L Lap · R Reset
Related Tools
You might also find these useful
Everything you need to know
Precise Online Stopwatch
This free online stopwatch runs directly in your browser with no downloads or sign-ups required. It leverages the browser's high-resolution timer API to deliver sub-millisecond precision, displaying elapsed time in HH:MM:SS.ms format. Whether you're timing a workout, a cooking recipe, a presentation rehearsal, or a scientific experiment, the large, easy-to-read display keeps you focused on the task at hand.
Lap Tracking & Split Times
Record split times on the fly without stopping the clock. Each lap entry shows the time since the previous lap and the cumulative total. When you've recorded two or more laps, the tool highlights your best (fastest) and worst (slowest) splits so you can quickly identify patterns or improvements. Clear individual laps or the entire list with a single click.
Keyboard Shortcuts for Speed
Power users can control the stopwatch entirely from the keyboard. Press Space to toggle start and stop, L to record a lap, and R to reset when paused. Keyboard shortcuts are automatically disabled when you're typing in a text input, so there's no risk of accidental triggers while working in other parts of the page.
Works Everywhere
The stopwatch is fully responsive and works on desktops, laptops, tablets, and phones. The time display scales from a compact mobile view to a large desktop format. Because all timing logic runs client-side with requestAnimationFrame, performance is smooth even on older devices. No data ever leaves your browser — everything stays private on your machine.
Related Tools
Need a countdown instead? Try the Calendar for date-based planning. Generate random numbers with the Random Number Generator, or count words and characters with the Word & Character Counter.