Mouse Testing - Button & Wheel Test

Check every mouse button and wheel direction in a small, private popup.

Mouse Testing gives you a fast way to check whether your mouse buttons and scroll wheel are reaching the browser correctly. Open the extension and test: • Left, middle, and right clicks • Back and forward side buttons • Scroll wheel input • Individual input counts Everything is processed locally in the extension popup. Mouse Testing does not request access to websites, collect browsing history, use analytics, or transmit your test input. For deeper checks, the More Tools menu opens the button, polling rate, and pointer smoothness tests on MouseTesting.org. Website links open only after you click them.