Features
- Lap and split times.
- Keyboard shortcuts: Space and L.
- Accurate even if the tab is in the background.
Free and private
It runs entirely in your browser - nothing is recorded, uploaded or stored on a server.
Questions
How accurate is it?
It uses the high-resolution clock of your device, accurate to a few milliseconds.
Is it free?
Yes - free and unlimited, with no sign-up and no watermark.