Mouse wheel tilt test for horizontal scroll and middle click

Check mouse wheel up, down, horizontal tilt and middle-click events with a browser-based wheel diagnostics panel.

Check scroll direction, horizontal tilt and wheel click

Test vertical wheel events, horizontal wheel tilt and the clickable middle button in one panel. Some browsers or mice report tilt as deltaX, so zero values are valid.

Wheel events0

Scroll or tilt inside this panel0 ↑, 0 ↓Tilt 0 ← / 0 →, Wheel click 0

Horizontal tilt support depends on the mouse and browser

How to test horizontal mouse wheel tilt (deltaX)

A tilt wheel can report horizontal movement through the browser’s deltaX value, but some operating systems, browsers and mouse drivers translate it into a different action. Use this page to confirm what reaches the browser, then compare the result with the full scroll wheel test for skipped or reversed vertical ticks. On Windows or Chrome, a driver may reserve tilt for another action, so an empty deltaX value can be expected.