Mouse and keyboard

Checking the mouse, keyboard and gamepad

Double clicks, repeated clicks, scrolling and stick drift. Check your specific issue directly in your browser.

38 inspections

Mouse double-click test

Check for unintended rapid clicks when you press once. Test each mouse button separately and inspect the intervals between clicks.

30–60 secondsFree

Keyboard double typing test

Find keys that register extra presses. The tester distinguishes repeated key presses from normal auto-repeat while a key is held down.

1 minuteFree

Mouse scroll wheel test

Look for reversed scroll events while scrolling in one direction. Counters and an event log show what the browser receives.

30 secondsFree

Controller stick drift test

Check analog sticks at rest, their range of movement and how they return to center. Compare raw axis readings before and after a change.

1–2 minutesFree

Mouse button hold test

Check whether a button stays pressed while you hold it and move the mouse. The event log records releases and hold duration.

30 secondsFree

Keyboard ghosting and rollover test

Check which key combinations reach your browser together. Useful when a game misses a jump or another action while you are moving.

1 minuteFree

Mouse button test

Check left, right, middle and side buttons. See press and release events and the number of events received.

1 minuteFree

Keyboard test

Check each key on a virtual keyboard. See its physical code, the character received and which keys you have tested.

1–2 minutesFree

Gamepad controller test

Check controller buttons, triggers and axes. See which values and input events your browser receives.

1–2 minutesFree

Mouse polling rate estimate

Estimate how often mouse movement events reach the browser. Compare connection modes and polling rate settings; this is not a direct USB measurement.

10 secondsFree

Reaction time test

Measure your reaction to a visual cue. Five attempts show the median and variation in your response time.

5 attemptsFree