Move your mouse over the diagram. Click the left, right, and middle buttons (and scroll the wheel) to verify they register correctly.
A mouse that clicks twice when you meant once, or a scroll wheel that skips lines, can quietly wreck your accuracy in games, spreadsheets, or design work. This mouse tester checks every part of your mouse in one place — buttons, double-click timing, scroll wheel, drag response, and cursor tracking.
Whether you just unboxed a new mouse or suspect an older one is starting to fail, running through every section here takes less than two minutes and tells you exactly what's working and what isn't.
The button panel highlights left, middle, right, back, and forward clicks the instant you press them, so you can confirm all five — if your mouse has that many — are registering correctly.
The scroll section counts every tick in both directions, the movement trail visualizes your cursor path, and the position counter shows real-time X and Y coordinates along with total distance traveled.
The double-click test measures the exact time in milliseconds between your two clicks. Operating systems use a maximum double-click interval — clicks closer together than that register as a double-click, while clicks further apart register as two separate clicks. This section lets you see your own timing and confirm your mouse registers double-clicks consistently rather than randomly.
One of the most common mouse failures is a worn-out switch that fires two signals from a single physical click, often called a ghost click or an unintentional double-click. If you click once here and the counter jumps by two, or your double-click test shows an impossibly short interval you didn't actually perform, that's a strong sign the switch is wearing out.
If you suspect ghost clicks, it's worth cross-checking your results against the mouse click counter to see if the pattern repeats consistently.
The scroll wheel section confirms your wheel registers both up and down ticks cleanly, without skipping or double-counting — a common failure point on older mice. The drag test checks whether your mouse maintains a consistent click-and-hold while moving, which matters for anything from dragging files to selecting text to click-and-drag actions in games.
This usually points to a worn switch rather than a software issue. Run the button test a few times in a row — if double-registers happen consistently on the same button, the switch is the likely cause.
Dust and debris around the scroll wheel mechanism is a common culprit, especially on mice that are a few years old. Compressed air around the wheel sometimes resolves minor skipping.
Check that you're using a suitable surface — glass, glossy, or highly reflective surfaces can interfere with optical sensors. A mouse pad usually resolves erratic tracking.
For wired mice, try a different USB port. For wireless mice, check the battery and confirm the receiver or Bluetooth connection is active. Windows' device troubleshooting steps are covered in Microsoft's mouse and touchpad troubleshooting guide.
Does this test measure clicks per second?
No — this tool focuses on button accuracy, double-click timing, scroll, and drag. For clicks-per-second measurement, use the mouse click counter.
Can I test a trackpad with this tool?
Yes, as long as your trackpad supports left, right, and middle-click equivalents, it should register the same way a physical mouse does.
What does it mean if my double-click test shows an impossible time?
An interval shorter than a real double-click usually means the mouse's switch is misfiring — sending two signals from a single press.
Does drag testing work for touchpads and trackballs too?
Yes. The drag test checks click-and-hold behavior while moving, which applies to any pointing device, not just traditional mice.
Do I need to install anything to run this test?
No installation is required. The test runs directly in your browser and responds to your mouse in real time.
If you're troubleshooting your setup, it's worth checking your other devices too. Try the webcam test to confirm your camera, the microphone test to check your mic, the speaker test for audio output, or the keyboard test to verify every key registers. For deeper mouse diagnostics, the drag click test is also worth a look.
Move your cursor over the diagram above, click through every button, scroll a few lines, and confirm your mouse is registering everything the way it should.