Test browser-visible trackpad behavior in one place: movement, press-and-drag, two-finger scroll, zoom, and secondary click feedback.
Checks
Scroll / Swipe
Best for
Gesture issues
Runs in
Browser
Test movement, drag, two-finger scroll, zoom, and secondary click here
Points: 0
Drag strokes: 0
How to read this test:
This page reports what the browser can actually observe: pointer movement, held drag, two-finger scroll, browser zoom, and secondary click events. It does not claim to identify the true finger count used by your hardware or operating system.
Press down on the trackpad until a drag starts, then move across the canvas to confirm the held state stays continuous.
Two-finger scroll should move the canvas and increase the scroll counter without creating a drag stroke.
Pinch gestures that the browser exposes as ctrl/meta + wheel should increment the zoom counter.
If your system maps two-finger click or corner click to a secondary click, you should see the secondary click counter change.
The canvas pan is visual feedback only. It helps confirm that the browser is receiving your scroll input.
Use the dedicated drag page when you only care about press-and-drag stability.
Focused drag diagnosis
Open the dedicated trackpad drag page when the main question is whether press-and-drag stays locked without dropped holds, broken trails, or unstable drag feedback.
This is the broad trackpad test page. Use it when you want to compare how the browser receives pointer movement, held drag, two-finger scroll, zoom-style wheel gestures, and secondary click behavior after changing drivers, browsers, or touchpad settings.
1. Move the pointer without pressing to confirm baseline movement. 2. Press and drag to verify the held state stays continuous. 3. Two-finger scroll on the trackpad and confirm the canvas shifts while the scroll counter changes. 4. Test zoom or secondary click separately to isolate which browser-visible behavior fails.
If movement and scroll look normal but dragging still drops, isolate the held-drag path first. That usually points to click mechanics, palm rejection, drag lock, or system gesture settings rather than a general sensor failure.
Continue with the next check that best matches the symptom you are troubleshooting.
Troubleshooting Center
Start with the symptom
Best next step
Test whether trackpad press-and-drag stays stable without dropped holds or broken trails.
Scroll wheel test for direction, skipped steps, reverse scrolling, and jumpy wheel behavior.
Test touchscreen and stylus input in your browser. Visualize multiple contacts, pressure, continuous trails, screen coverage, edges, and corners.