Mouse Tester

Test left, right, middle, and side mouse buttons, scroll wheel smoothness, double-click faults, and measure CPS (Clicks Per Second). Typical uses include diagnosing double-clicking faults on failing mechanical mouse switches, testing gaming mouse side buttons and scroll wheel encoders, and verifying trackpad gestures and multi-button setups. The focused Mouse Tester workflow is intended for people who need a dependable result without opening a larger desktop application or creating an account for a one-off task.

Attaches pointer and mouse event listeners (mousedown, mouseup, wheel, contextmenu) to track button bitmasks and timestamp deltas. Its controls cover tests Left, Right, Middle (Scroll Click), and Side Navigation buttons (Buttons 4 & 5), mouse wheel scroll direction and delta measurement, double-click speed and switch bounce detection, and polling click counter and event log history. The tool accepts mouse Events. It produces interactive Mouse Diagram that can be reviewed before it is saved.

Right-click context menu is suppressed within the test arena to allow right-button diagnostics. When Mouse Tester is marked as in-browser, its work remains on the current device; available memory, processor speed, browser support, permissions, and source quality can still affect the result. Keep the original material supplied to Mouse Tester until its interactive Mouse Diagram has been checked for the intended use.