How to run the multi-touch test
- Open the test on your touch device. Use the phone, tablet or touch laptop you want to check and tap Full screen so system gestures at the edges don’t get in the way.
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Add fingers one by one. Each touch gets its own coloured circle with a number and its x, y position in pixels, plus the contact size when the screen reports it.
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Read the count. Touching now shows the fingers on the screen, and Max at once keeps the highest number until you press Reset, so you can lift your hands and read it.
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Check tracking. Turn on Trails and drag several fingers at once. Every finger should leave a smooth, unbroken line.
- Compare with what your device reports. Device reports shows how many touch points the browser says your screen supports. If Max at once reaches that number, multi-touch works as designed.
What the results mean
- Touching now counts every finger the screen currently sees.
- Max at once is the most simultaneous touches recorded since the last reset — the number most people are looking for.
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Device reports is the value of
navigator.maxTouchPoints, the limit the operating system passes to the browser. 0 means no touchscreen; 5 and 10 are common values. -
Pressure and contact size appear next to each finger, and in the Touch points table, when the screen reports them. Many screens report neither, which is normal.
Why most touchscreens stop at 10 touch points
Touch controllers are designed around the number of fingers people actually use. Ten points covers both hands, so it’s the usual limit for phones, tablets and touch laptops, while older or budget screens may track only 2 or 5. Large interactive displays and some touch monitors support 20 points or more.
The limit is set by the touch controller and the operating system, so a browser or app can’t raise it. If the count here matches the number your device reports, multi-touch is working as designed.
Multi-touch not working? Fix it step by step
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Make sure the browser sees a touchscreen. If the test says No touchscreen detected, the device reports 0 touch points — trackpads and mice don’t count. On a Windows touch laptop, open Device Manager › Human Interface Devices and make sure HID-compliant touch screen is enabled, then reload this page.
- Spread your fingers out. Fingers that touch or sit very close together can merge into a single point.
- Go full screen, so swipes near the edges aren’t treated as navigation gestures.
- Turn off multi-finger system gestures that take over the screen. Some Android phones use a three-finger swipe for screenshots — turn it off in the gesture settings. Windows 11: Settings › Bluetooth & devices › Touch, turn off Three- and four-finger touch gestures. iPad: check Settings › Multitasking & Gestures (Home Screen & Multitasking on older versions).
- Remove a thick case or screen protector, and dry your hands and the screen.
- Restart the device and run the test again. If one area never picks up a finger, run the Touch Screen Test to look for dead zones there.
Keyboard shortcuts
- F Full screen
- R Reset the counts
- Esc Exit full screen
About this multi-touch test
This free multi-touch test runs entirely in your browser. It uses Pointer Events, with a Touch Events fallback for older iPhones and iPads, and nothing is uploaded or stored.
It works on Android phones and tablets, iPhone and iPad, Windows touch laptops and 2-in-1s, Chromebooks and touch monitors, in Chrome, Edge, Safari, Firefox or Samsung Internet. On a computer without a touchscreen it shows how many touch points the device reports, and you can still click and drag to try it with a mouse.
Frequently asked questions
How many touch points does my phone support?
Put as many fingers on the test area as you can: Max at once shows how many the screen tracked together. Device reports shows the limit your browser reports, often 5 or 10 on phones and tablets.
Why do most screens stop at 10 touch points?
Ten points covers every finger on both hands, so touch controllers in phones, tablets and laptops are usually built for that. The limit is set in hardware and by the operating system, so software can’t increase it.
Why does a touch disappear when I add another finger?
Fingers that are very close together can merge into one point, and some phones and tablets use three-, four- or five-finger gestures that take over the screen. Spread your fingers apart, go full screen and turn off multi-finger gestures in your settings.
Does the multi-touch test work on iPhone and iPad?
Yes, in Safari or any other browser. iPhone can’t put web pages in true full screen, so the test fills the browser window instead. On iPad, turn off four- and five-finger gestures for the most accurate count.
Can I test multi-touch on a laptop?
Yes, if the laptop has a touchscreen. Laptops without one report 0 touch points, and a trackpad doesn’t send touch points to web pages, so the test can’t count trackpad fingers.