Mouse test: buttons, scroll wheel, and double click
Click every button, spin the scroll wheel, and move the cursor around to check your mouse or touchpad for the most common hardware problems, including the notorious double click bug and skipped scroll steps. Touchscreen multi-touch is checked too.
Mouse & touch test
Click any mouse button, spin the scroll wheel, and move your pointer or fingers over the pad below.
Left
Middle
Right
Back
Forward
Last scroll
no scroll yet
Double-clicks detected
0
Pointer position (in pad)
move over pad
Tracking pad (mouse, pen, and multi-touch)
Quick guide: how to use the Mouse & Touch Test
Takes under a minute- 1Click the left, middle, right, back and forward buttons in turn.
- 2Scroll the wheel up and down to confirm both directions register.
- 3Move the pointer across the tracking pad to check for jumps or stutter.
- 4On a touchscreen, use several fingers at once to test multi-touch.
Overview
A mouse feels like one of the simplest peripherals you own, but it's actually reporting several independent streams of data at once: which buttons are pressed, how far and in which direction the wheel has turned, and the precise x and y movement of the sensor as you glide it across a surface. Any one of these can fail on its own while the rest of the mouse continues working perfectly, which is why a proper test checks each piece separately instead of just seeing whether the cursor moves at all.
This page is split into sections that mirror those independent systems. Click each button in the button panel to confirm it registers as pressed and released cleanly. Use the scroll test to check both directions of your wheel. Try a normal double-click in the double-click counter to catch the single most common mouse hardware failure. Move the cursor through the tracking pad to watch for jumps, lag, or dead zones. If your device has a touchscreen, the multi-touch panel confirms it can track more than one finger at once.
Test with the mouse on the surface you actually use day to day, since sensor performance can vary noticeably between a proper mouse pad, a bare desk, and glossy or glass surfaces.
How to read your results
Button panel
Each button, left, middle, right, and the back/forward side buttons if your mouse has them, lights up the instant it's pressed and stays marked once it's been pressed at least once during your session. A button that never lights up despite repeated clicks is either not wired correctly inside the mouse or not being recognized by your operating system's driver.
Scroll wheel readout
Scrolling updates a live readout showing direction (up or down) and the magnitude of each scroll event. Smooth, evenly spaced updates as you turn the wheel slowly indicate a healthy encoder. Gaps, sudden large jumps, or scroll events firing in the wrong direction all point to wear inside the wheel mechanism.
Double click counter
Perform a normal double click the way you would to open a file or application. The counter reports how many double-click events it detected. If a single double click you performed shows up as more than one registered double click, or if single clicks are being reported as double clicks, that's the classic symptom of switch bounce inside a worn mouse button.
Tracking pad and coordinates
As you move the mouse inside the tracking area, the coordinate readout updates continuously and a visual trail follows your cursor's path. Consistent, unbroken movement at any speed means the sensor is tracking reliably. Gaps in the trail, sudden teleporting, or the cursor freezing briefly all indicate tracking problems that are usually caused by the surface, the sensor, or an outdated driver.
Troubleshooting
If any part of this test reveals a problem, try these steps in order:
- Clean the sensor lens on the underside of the mouse and the mouse feet, since built-up grime can interfere with tracking accuracy.
- Try a different surface. Glossy, transparent, or highly reflective surfaces confuse most optical and laser sensors.
- Test the mouse on another computer or through a different USB port to rule out a driver or port-specific issue.
- Update or reinstall your mouse manufacturer's driver software, especially for gaming mice with custom firmware.
- If a button consistently double-registers, lower your OS double-click speed setting as a temporary workaround.
- For a wireless mouse, replace or recharge the battery, since low battery levels can cause intermittent tracking and click drops before the mouse fully dies.
- If a button or the scroll wheel fails consistently after these steps, the internal switch or encoder has likely worn out and needs professional repair or replacement of the mouse.
The double click bug explained
Inside every mechanical mouse button sits a small microswitch with metal contacts that snap together when you press down. Over tens of thousands of clicks, those contacts wear down and develop microscopic pitting. Instead of connecting cleanly, a worn contact can bounce, briefly disconnecting and reconnecting within a few milliseconds. Your operating system sees that bounce as two separate clicks close together and interprets it as a double click you never intended.
This is one of the most common mouse failures because it happens gradually and is purely mechanical wear, not something a driver update can fully fix. Most office and gaming mice are rated for anywhere from 10 million to 50 million clicks per switch, and heavy daily use, especially rapid clicking in games or spreadsheet work, can reach that limit within a couple of years.
Touchscreen and multi-touch notes
Touchscreens use a completely different technology from mice, typically a capacitive digitizer layered under the glass that detects the electrical field of your finger at multiple points simultaneously. Testing multi-touch matters because gestures like pinch-to-zoom, two-finger scroll, and rotate all depend on the screen correctly tracking two or more contact points at once with accurate, independent positions.
If your multi-touch test only ever shows a single tracked point no matter how many fingers you use, check for a thick or poorly fitted screen protector first, since some low-quality protectors interfere with capacitive sensing at the edges of the screen. If the problem persists with the protector removed, it's worth checking for a firmware or driver update from the device manufacturer before assuming a hardware fault.
Frequently asked questions
How do I test if my mouse buttons are working?
Click each button on your mouse, left, right, middle, and any side buttons for back and forward, while watching the on-screen button panel. Each button lights up the moment it's pressed, so you can immediately confirm whether it's registering.
How do I test my mouse's double click speed?
Use the double click counter on this page and double-click normally the way you would to open a file. The tool detects how quickly your two clicks arrive and confirms whether your browser and operating system are correctly recognizing them as a single double-click event.
Why does my mouse register a double click when I only click once?
This is called a 'double click bug' or 'ghost clicking' and is extremely common in mice with worn-out microswitches. The metal contacts inside the switch develop tiny gaps that bounce and send two signals from a single physical press, especially after a couple of years of regular use.
How do I fix a mouse that double-clicks by itself?
First, adjust your operating system's double-click speed setting to the slowest option, which sometimes masks minor switch bounce. If the problem persists, the microswitch itself is usually worn out, and either replacing that switch (if you're comfortable with basic soldering) or replacing the mouse is the reliable fix.
How do I test my scroll wheel?
Scroll up and down inside the scroll wheel test area on this page. It reports the direction and magnitude of each scroll event, so you can confirm both directions register smoothly without skipping steps or scrolling the wrong way.
Why does my scroll wheel skip or scroll two lines at once?
This usually means the encoder wheel inside your mouse, which reads the physical notches as you turn the wheel, has accumulated dust or has worn detents. Cleaning around the wheel with compressed air sometimes helps; persistent skipping usually means the encoder needs replacing.
How do I test mouse pointer tracking and DPI accuracy?
Move your mouse across the tracking pad area on this page and watch the coordinate readout and cursor trail update in real time. Smooth, consistent movement without jumps or lag indicates your sensor and surface are working well together.
Why does my mouse cursor jump or stutter?
Jumpy tracking is often caused by a dirty or worn optical/laser sensor, a reflective or glass surface that confuses the sensor, a low mouse polling rate, or an outdated mouse driver. Try a proper mouse pad and updating your mouse's drivers or firmware if available.
Does this test work with a touchpad instead of a mouse?
Yes, laptop touchpads generate the same click, scroll, and pointer movement events as a physical mouse, so every section of this test works with a touchpad as well, including button emulation for tap-to-click and two-finger scroll.
How do I test multi-touch on a touchscreen?
Touch the multi-touch test area on this page with more than one finger at once. Each finger shows up as a separate tracked touch point with its own position, which confirms your touchscreen can distinguish and track multiple simultaneous contacts.
My touchscreen only tracks one finger at a time, is that normal?
Some budget touchscreens and certain accessibility modes are limited to single-touch input by design. If your device is advertised as supporting multi-touch gestures like pinch-to-zoom but this test only shows one point, check for a driver update or a stuck screen protector interfering with the digitizer.