Touchscreen Test

How to use

1. Place your fingers. Rest one finger on the box, then add more one at a time. A colored dot follows each one.
2. Press all at once. Start with five fingers from one hand, then add the other. 'Max at once' records the highest count your screen tracked.
3. Drag to find dead zones. Slide each finger across the whole surface. A dot that skips or drops in one patch means that part of the digitizer isn't responding.

Why test this

Your phone or tablet is only as good as the glass you tap on, and touch faults creep in quietly. Think of a pinch-to-zoom that works one time in three, or a game where the second finger never registers. This test puts a number on the problem. Press several fingers down and you see exactly how many your screen tracks at once. Drag them around and any dead patch shows itself. Lift off and watch for a dot that fires on its own, which is a ghost touch. That tells you whether the fault is the hardware or just one flaky app. Run it on a used phone before you pay. It's just as handy after a screen repair, when you want to confirm the new digitizer reaches every edge, or before you file a warranty claim. The whole thing runs in the browser, so any phone or tablet checks out in seconds with nothing to install.

What the results mean

Three counters describe your screen. 'Touching now' is how many fingers are down at this second. 'Max at once' is the highest count tracked since you started, so press all five fingers, then both hands, to push it as high as the screen allows. 'Reported max' is the ceiling your device claims through the browser, usually 5 or 10 on phones and tablets and 0 on a computer with no touch sensor. A healthy screen reaches its reported max and follows every finger smoothly from edge to edge. If 'Max at once' stalls below the reported number, or a dot drops out in one area as you drag, that part of the digitizer isn't tracking. A dot that appears with no finger down is a phantom touch. A phantom touch, or a count that won't reach the reported max, usually means a hardware fault rather than a flaky app.

FAQ

How many touch points should my phone support?

Most current phones track 5 or 10 fingers, and many tablets handle 10. Older or budget screens often stop at 2. The 'Reported max' counter shows what your device claims it can do. 'Max at once' shows what it actually tracked while you pressed.

What is a dead touch zone?

It's an area of the screen that stops responding to touch. Drag a finger across it and the dot sticks or disappears over that spot. Dead zones usually trace back to a cracked panel, or to a screen protector that has lifted or cracked at the edges.

How do I test for ghost touch?

Lift all your fingers and leave the screen alone for a few seconds. If a dot appears on its own, or 'Touching now' climbs without you touching anything, your screen is registering a phantom touch. That usually means moisture under the glass, a failing digitizer, or pressure on the panel from a warped case.

Why does the test ignore my mouse or trackpad?

This is a touchscreen test, so it only counts real finger and stylus input. A mouse or trackpad has a single pointer and can't do multitouch, so counting it would skew the result. Open the page on a phone, tablet, or touch display to test more than one finger at a time.

Does a screen protector affect the result?

A clean, well-fitted tempered glass shouldn't. A cracked or lifted protector can swallow touches or create dead spots. If you suspect yours, run the test once with it on and once with it off and compare.

Is this multitouch test safe and private?

Yes. The test runs entirely in your browser, installs nothing, and sends no data anywhere. Your touch coordinates never leave the device.

Embed the multitouch test on your site

Covering a phone or tablet review? Add the multitouch test so readers see how many touch points their screen handles and where they land. One snippet, full-screen ready, and the count reads out in seconds.

Want the whole set on your pages? See every tool you can embed →