Five-button input monitor
Test left, middle, right, Back, and Forward mouse buttons with live pressed states and independent click counts.
For complete results, use a desktop or laptop with a connected mouse.
Press mouse buttons inside this area
The context menu is disabled only inside this test area. Extra buttons may be reserved by your browser or operating system.
Back and Forward are reported only when the browser exposes buttons 3 and 4. A zero count does not prove that your mouse lacks them.
Press each button inside the test surface. A row changes while the button is held and its count advances on press. The test uses the browser button numbers defined for primary, auxiliary, secondary, Back, and Forward input.
Some browsers, operating systems, extensions, and mouse utilities reserve navigation buttons before a page receives them. The test reports Detected only after an actual button 3 or 4 event arrives; it never invents support from the device name.
The context menu is prevented only over the test surface so a right-button press can be counted. Right-clicking the navigation, article text, or any other part of the site keeps normal browser behavior.
It monitors the standard browser button values for left, middle, right, Back, and Forward. Whether extra buttons reach the page depends on your browser, operating system, and device software.
The browser or operating system may reserve it for navigation or map it to another command. A zero count means no matching browser event reached this page; it does not prove the physical button is absent or faulty.
No. The context menu is blocked only inside the marked test area. Right-click works normally elsewhere on the page.
No. It can reveal event patterns and missed presses in the browser, but physical diagnosis requires comparison with other software, ports, computers, or hardware tools.
More diagnostics
Use each focused test to compare click, button, wheel, and movement behavior without uploading event data.
