Free online tool

Test every mouse button, click interval, scroll wheel and observed movement frequency in your browser.

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How online mouse tests work: CPS, DPI and polling rate

Understand how click intervals, CPS, scroll counts and polling estimates are calculated.

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How browser mouse events become useful signals

Online mouse tests listen for browser mouse events and timestamp them with a high-resolution clock. Each event updates a visible count and the most recent action, letting you compare a symptom without installing software.

Click interval and double-click timing

The interval is the elapsed time between consecutive click events. The double-click pages use configurable thresholds to surface possible chatter, while a normal intentional double click should repeat consistently.

CPS and clicks per minute

Clicks per second is total clicks divided by elapsed test time. Clicks per minute scales the same count to a 60-second rate. Longer runs reduce the effect of one fast burst and make comparisons more stable.

DPI estimate from physical movement

The DPI tool combines a measured physical distance with the cursor distance reported on screen. Operating system scaling, acceleration and browser zoom can change the estimate, so keep those settings fixed.

Polling rate is an observed browser estimate

During pointer movement, the page counts recent movement events in a rolling one-second window. Browsers may coalesce events, so this is observed event frequency rather than a firmware guarantee of 1000 or 8000 Hz.