Multitouch Test

Press Start the test, put your fingers on the screen one at a time and watch the count climb.

The number of touch points your device reports shows here.

Touch the screen to start.

Filled 0 squares

On a touch screen, Start opens the grid over the whole screen. Hold Done for a second to come back.

More options

Your last five runs

  1. No run yet.

Nothing from this test is stored unless you tick the box. Kept runs are numbers only and never leave this browser.

How this check works

Ten fingers, one at a time

Put your fingers down one by one, both hands. A numbered ring appears under each touch, and the page keeps the most it saw at once beside the number the device says it can track.

A square fills only where the screen reported a touch. The page shows what arrived, and it never judges the screen.

  • A square of the grid fills only when the screen reports a touch inside it.
  • A square that lies between two reports but got none of its own is marked as passed over, not filled.
  • The finger count is the most touches the browser reported at one moment, next to the number the device says it supports.

Result

No touches yet. Touch the grid to start.

What this means

Filled
-
Passed over
-
Most at once
-
Strokes
-

Next step Fingers counted. Now fill the grid to find dead spotsTouches you never made? Run the hands-off watch

All 15 checks and readings

Finger-count checks, one at a time 5

  • One hand, five fingers held still Rest all five fingertips and hold them for ten seconds. Touches now should stay at 5. A ring that blinks out and comes back is a touch the screen lost for a moment while the finger stayed down.
  • Ten fingers, one at a time Put your fingers down one by one, both hands. A numbered ring appears under each touch, and the page keeps the most it saw at once beside the number the device says it can track.
  • Two fingers swiped side by side Swipe two fingers across the screen together, a dozen times. Each finger gets its own line, drawn from the points the screen reported. Lines that cross, leap towards each other or stop in mid-screen mark the places to try again slowly.
  • Two-finger pinch and spread Set two fingers down apart, slide them slowly together, then spread them again. Both rings should follow the whole way. Note how close the fingers get before one ring drops out.
  • Whole hand over the grid, battery then charger Sweep the grid with every finger of one hand while unplugged, then again on the charger, and label each run. Each result keeps the most fingers seen at once. The page cannot see your charger, so the labels are yours.
Show all 15 checks and readings (10 more)

Counts that need a second look 10

  • A ring appears where no finger is With two or more fingers down, a touch is drawn away from all of them. Panels that sense each row and column by itself cannot place more than one finger accurately, and the misplaced touch is called ghosting. Move the same fingers to another arrangement and see whether it follows.
  • All the rings vanish at once The browser cancelled every touch together, fingers still down. It can do that when too many pointers are on the screen, and devices keep some several-finger gestures for functions of their own. Count with one finger fewer, or switch those gestures off in the settings.
  • The count never passes one or two Look at the number the device reports. If it is 5 or more, dry your hands, spread the fingers wide and run again. If it is 1 or 2, the panel is built that way: resistive screens and self-capacitance sensing are mainly single touch.
  • Fewer fingers on the charger than on battery A power supply with a lot of electrical noise can reduce a capacitive screen's accuracy while it is plugged in. Try another charger and cable. If the count is right on battery every time, the screen is not the first suspect.
  • The heel of the hand counts as a finger A ring under your palm is a real contact: panels built for multi-touch track fingers, palms and styluses alike. Lift the wrist and count again. Where a device rejects a resting palm, the browser cancels that touch and its ring goes.
  • Most at once equals the number the device reports The screen tracked as many touches as the browser says it supports, so the count has nothing more to find.
  • No touch points reported by this device The browser reports 0, the usual answer on a computer without a touch screen. A mouse press still draws one ring, so you can see how the page counts, and the run is listed as mouse input.
  • One of the two lines ends in a square A square end marks a touch the browser cancelled, and a round end one that lifted or was lost. A cancelled line means the browser or the system stepped in, so look at the gesture settings before the glass.
  • Ten fingers down, the count stops at five Expected on a phone when both numbers in the result read 5. It is a ceiling set by the device, not a sign of wear.
  • Two close fingers under a single ring A touch layer senses at the crossings of a grid of traces, and the more crossings it has, the more separate fingers it can tell apart. Two fingertips pressed together can come through as one touch. Spread them until the second ring appears.

How this list was compiled: Rows written for this page; facts read on 2026-10-09. MDN Web Docs on the number of touch points a device reports (0 on a computer without a touchscreen, typically 5 on a smartphone): https://developer.mozilla.org/en-US/docs/Web/API/Navigator/maxTouchPoints. MDN Web Docs on the touches a browser cancels (too many pointers at once, palm rejection): https://developer.mozilla.org/en-US/docs/Web/API/Element/pointercancel_event. MDN Web Docs on pointer events, where every pointer has its own identifier: https://developer.mozilla.org/en-US/docs/Web/API/Pointer_events. Wikipedia, for what multi-touch is, how a panel tells touches apart, single-touch panels, ghosting and power-supply noise: https://en.wikipedia.org/wiki/Multi-touch (revision of 10 September 2026), https://en.wikipedia.org/wiki/Touchscreen (4 October 2026) and https://en.wikipedia.org/wiki/Capacitive_sensing (26 May 2026). No figure is given for how many touches a device should read, and the advice on each reading is this page's own. Licence: own work

How it works

This multitouch test shows how many fingers your screen reads at once. The multitouch tester draws a numbered ring under every touch and keeps the highest count, beside the number of touch points the device itself reports to the browser.

Read the full guide

Multi touch test: count your fingers

1. Press Start the test. 2. Put fingers down one at a time, both hands. Each gets a ring with its number. 3. Lift every finger. Five seconds later the result reads, for example, Most touches at once: 5. Your device reports 5.

What a multi touch screen is

A multi touch screen recognises more than one point of contact at the same time, which is what pinch to zoom needs. A count of 2 or more here means yours does.

Questions and answers

How does a finger touch test count my fingers?

By pointer. The browser gives every finger on the glass its own identifier while it stays down, and the page counts how many are down in the same instant. A finger the screen misses never gets one, so no ring appears under it.

How many fingers can a multi-touch screen track?

It depends on the device: smartphones typically report 5 touch points. The browser tells the page your screen's own number, printed here after Your device reports.

Can a multi touch test find a dead spot?

Not well: it counts touches and does not map the glass. To find a patch that never responds, fill the grid on the touchscreen test, which marks every square your finger crosses.

Does the multitouch test work on a laptop?

On a laptop with a touch screen, yes. Without one, the page says the computer has no touch screen.

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