Mouse Test
Check mouse buttons, movement, scroll wheel input, coordinates and recent pointer events.
How to use this test
Move the pointer around the test field, click each mouse button, use the wheel in both directions and try side buttons if your mouse has them. Watch the live button state, coordinates and event readout.
How the measurement works
The tester listens to PointerEvent, mouse-button and wheel events exposed by the browser. It marks each button the page receives and reports pointer coordinates relative to the active test area.
How to interpret results
A button that lights consistently is reaching the browser normally. Missing or unexpected events can point to a browser shortcut, driver mapping, hardware switch issue or a button the browser does not expose.
Troubleshooting tips
Test another USB port, reconnect wireless receivers, check mouse software mappings and compare another browser. Side buttons can be reserved for Back/Forward navigation, so test them inside the focused surface.
Related tests
You can also browse every utility from the complete tool index.
Common mouse questions
How do I test if every mouse button works?
Use the focused mouse test area and press left, right, middle and side buttons one at a time. A button should produce a consistent browser event; side buttons can sometimes be reserved for Back or Forward navigation.
Read full answer →Why are my mouse side buttons not detected?
Browsers or the operating system can reserve side buttons for navigation, and mouse software can remap them before the page sees the event. Test inside the focused area, check vendor mappings and compare another browser.
Read full answer →Can an online mouse tester diagnose a broken mouse?
It can confirm whether browser-visible clicks, movement and wheel events are arriving consistently, but it cannot inspect the physical switch or sensor directly. If the same failure appears across browsers and computers, hardware becomes more likely.
Read full answer →Why does a side mouse button not appear in the tester?
Some side buttons are reserved for browser Back/Forward actions or are remapped by mouse software, so the web page may not receive them as normal button events.
Read full answer →