Does the stopwatch continue running if I switch tabs?

Yes, modern browsers manage background tasks efficiently, but to ensure perfect split-second accuracy, we calculate the time based on the exact timestamp when you started, so it will always be perfectly accurate even if the browser tab goes to sleep.

How accurate is this stopwatch?

It measures time down to the hundredth of a second (centiseconds), relying on your device's internal system clock for extreme precision.

Stopwatch | Quick Tool Kit

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Precision Online Stopwatch with Laps

Need to track time accurately for a presentation, exercise, or productivity sprint? Our Online Stopwatch is a simple, highly precise, and completely free web tool. It features split-second accuracy and the ability to record unlimited laps without slowing down your browser.

Features of our Web Stopwatch

With a sleek, distraction-free interface, our stopwatch includes Start, Stop, Reset, and Lap functionalities. The recorded laps show the total elapsed time as well as the difference between the current lap and the previous one, making it ideal for tracking performance metrics over repeated tasks.