Test mouse and trackpad buttons, scrolling, cursor movement, and double-click timing online. Count left, middle, right, back, and forward clicks and spot switch bounce.
Input stays in this browser tab
Move, click, and scroll here
Right-click and side buttons are captured instead of triggering browser actions.
0 of 5 buttons registered. A single click should raise a count by exactly one.
Left button
0
Not tested yet
Middle button / wheel click
0
Not tested yet
Right button
0
Not tested yet
Back (side button 1)
0
Not tested yet
Forward (side button 2)
0
Not tested yet
Scroll in every direction your wheel supports.
Live pointer readings from the test pad.
Relative to the test pad
Limited by the display refresh rate
Typical system window is 500 ms
Complete tool guide
Use this online mouse tester to check the main buttons, side buttons, wheel directions, cursor tracking, and double-click interval, including the accidental extra clicks caused by a worn switch.
Your input is processed in the current browser tab and is not sent to the application server.
Move the pointer across the test pad to check tracking.
Click each button once and confirm the count goes up by exactly one.
Scroll up, down, and sideways if your wheel tilts.
Double-click to measure the interval between two presses.
Move, click, and scroll inside the large test area. Right-click menus and standard back/forward navigation are suppressed there so those buttons can be counted without leaving the page.
Each card shows whether the button is currently held and how many presses registered. A deliberate single press should increase only its own count by one.
These cards cover the common thumb buttons numbered 3 and 4 by the browser. Driver remapping or vendor software may intercept them before the page receives an event.
Scroll events counts wheel messages; Last direction reports up, down, left, or right; Vertical and Horizontal totals accumulate browser-reported movement in pixels. Trackpads can produce many small events.
Position is measured relative to the test pad. Pointer type identifies mouse, touch, or pen as reported by the browser, which can help explain different trackpad or stylus behavior.
This estimates how frequently pointer-move events reach the page. Because browsers may combine events around the display refresh rate, it is suitable for spotting stutter but not certifying a mouse's advertised polling rate.
The interval is the time between two left-button presses. Extremely close unsolicited presses can trigger the switch-bounce warning; repeat the test slowly to distinguish a fault from an intentional double click.
Reset clears all click counts, scroll totals, movement readings, timing, and warnings so you can retest after changing a cable, USB port, battery, or system setting.
A worn micro-switch sends two presses from one physical click. If a single click raises the count by two, or the interval reads only a few milliseconds, the switch is bouncing and the mouse needs repair or replacement.
The rate is inferred from how often the browser delivers pointer events. Browsers coalesce events to the display refresh rate, so a 1000 Hz gaming mouse will usually read close to your monitor refresh rate rather than 1000.
Inside the test pad the right-click menu and the back and forward side buttons are suppressed so those presses can be counted instead of navigating away.
That is the classic sign of a worn switch inside the mouse. The contacts bounce and send a second press within a few milliseconds. It is a hardware fault, not a browser setting.
Browsers group pointer events to the display refresh rate, so a high-polling-rate mouse will read close to your monitor refresh rate. The figure is useful for spotting stutter, not for verifying a polling-rate specification.
Not necessarily. Many mice map their side buttons in driver software rather than sending standard button events, so the browser never sees them.
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