What is an Online Stopwatch?
A browser-based stopwatch with millisecond accuracy. Supports start, stop, lap, and reset. The large display is readable from a distance, and it continues running accurately in background tabs.
Frequently Asked Questions
How accurate is it?
Accurate to the millisecond using high-resolution browser timing.
Does it run in background tabs?
Yes. Uses time calculation rather than intervals, so it stays accurate.
Can I record laps?
Yes. Click Lap to record split times with individual and cumulative durations.