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Mouse Test

Check that every button on your mouse is being detected correctly by your browser and operating system — left, right, middle and side buttons.

Click each button on your mouse to test it. Right-click won't open a menu here.

LEFT0
RIGHT0
MIDDLE / SCROLL CLICK0
SIDE 1 (BACK)0
SIDE 2 (FORWARD)0

Side buttons aren't present on every mouse, and some browsers or operating systems may intercept them before this page sees them.

This test shows what your browser receives from your operating system's mouse driver. It can't detect faults that are corrected before reaching the browser.

How to use the Mouse Test

  1. Click each button on your mouse in turn.
  2. Watch the matching button on screen light up and its count increase.
  3. If a button doesn't register, try it a few more times — then check your OS mouse settings if it still doesn't respond.

Understanding your results

Each button lights up the instant your browser receives a press event, and the counter increases with every registered click. If a button consistently fails to register here, the issue is most likely with the mouse hardware, its driver, or an operating system binding — not this page.

About the Mouse Test

A basic mouse exposes at least three buttons (left, right, middle/scroll-click), and many gaming and productivity mice add two extra side buttons, often used for browser back/forward navigation. This test listens directly for button press events so you can confirm each one is being recognized before you rely on it in a game or application.

Tips to improve

  • If side buttons don't register, check your mouse manufacturer's software — some side buttons are remapped to keyboard shortcuts at the driver level and never reach the browser as mouse events.
  • Try the mouse in a different USB port if a button is intermittently unresponsive — that can rule out a port or cable issue.

Frequently asked questions

Many mice remap side buttons via manufacturer software to perform actions like "copy" or "back" at the operating system level, so they never reach the browser as a raw mouse click.

It can show whether a button press reaches the browser or not, which is a useful first check — but it can't diagnose the hardware itself.