Mouse test · no permissions needed
See what your browser receives from your mouse.
Check every button, inspect click intervals, observe vertical and horizontal wheel events, then measure your CPS.
Start with button test01 · Mouse event test
Check each mouse button
Press buttons inside the test area. Pressed, tested and untouched states stay separate so you can inspect one control at a time.
Back and Forward buttons can be reserved by your browser or operating system. A missing event does not prove a hardware fault.
Recent browser events
No events yet
02 · Double-click diagnostics
Inspect click intervals, not a verdict
Click repeatedly in the area below. Calculated intervals and the browser’s dblclick event are reported separately.
03 · Wheel test
Observe vertical and horizontal wheel events
The browser-reported delta values and deltaMode are shown as-is. The dominant axis is used only for the direction label.
Wheel deltas are browser event values. They are not DPI, hardware steps, polling rate or latency.
No events yet
04 · Click speed
Measure clicks per second
Choose a duration. The first physical left click starts the timer and counts as click one.
Privacy by design
Your raw test data stays in this browser
Mouse buttons, coordinates, event timing, wheel deltas and event history are not sent to our analytics service.
Browser storage
Only CPS best scores, grouped by test duration, are saved in localStorage. You can clear them at any time. Raw event history is kept in memory and disappears when you leave or reload.
Usage analytics
If analytics is enabled, our custom event payload contains only fixed summaries: language, mode start, mode completion, reset and local-record clearing. Automatic page views, Google Signals and ad personalisation are disabled. Google Analytics may still process standard connection and browser metadata, but it never receives a button code, interval, wheel delta or score from this tool.
Permissions and uploads
The test uses standard browser pointer, mouse and wheel events. It asks for no camera, microphone or device permission and uploads no test data.
Mouse test questions
Can this test prove my mouse is broken?
No. It shows only the events delivered to this browser. Drivers, browser settings, extensions and the operating system can affect what appears.
Why do Back or Forward buttons show nothing?
Some browsers and operating systems reserve side-button actions. Compare browsers and computers before drawing a hardware conclusion.
Are wheel delta values the physical wheel steps?
No. Their units depend on deltaMode and browser processing. They must not be interpreted as DPI, polling rate or hardware latency.
Does a keyboard press or screen tap count toward CPS?
No. The CPS area counts physical left-button pointer input and ignores touch, pen and keyboard activation.