MousePoll answers a question most mouse tools answer badly: “how fast is my mouse reporting?” — badly, because the honest answer in a browser is “as often as the browser lets you see”, and most sites don’t say that part out loud.

The three panels

• Polling-rate test — circle the mouse, get the delivered event rate: average Hz, peak 100ms window, interval jitter, and a histogram that shows where your stream lands against the standard 125/250/500/1000Hz bands. Chrome/Edge also get sub-frame sample counts.
• Click test — a CPS counter that also reports dwell time (how long your presses hold) and the in-browser share of click delivery delay.
• Scroll test — wheel events per second, total delta, and the delta units your browser reports.

Why the ceiling note never goes away

Every browser-based mouse tester hits the same wall: pointermove is delivered on the frame loop, so the observable rate caps near display refresh. Most sites show the number and let you believe it’s your hardware rate. We show the number, label it “browser-observed event rate”, and keep the ceiling explanation visible under the tester at all times — plus a full article on measuring at the hardware level for the number no page can produce. Being precise about what a measurement isn’t is a feature, not a disclaimer.

Who’s behind it

MousePoll is built and maintained by a small independent team that ships focused, single-purpose utility sites. Found a number that doesn’t match your hardware, a browser where the tester misbehaves, or a claim in the guides that’s wrong? Contact us — measurement discrepancies get investigated first.