Touchscreen Test
Touch the area with one or more fingers. Each touch gets its own colour; draw lines to find spots that don’t respond.
Runs in your browser — nothing is uploadedTouching now 0Most at once 0Device supports —Cells left
How to use Touchscreen Test
- Touch the test area with one finger, then several at once.
- Draw slow lines across the whole area — gaps reveal dead zones.
- Switch to the grid and touch every cell until it is complete.
Formula & assumptions
- Nothing is recorded or uploaded — the test runs entirely in your browser.
Questions
How many touches does my screen support?
The page shows what your device reports and the most simultaneous touches you reach. Phones usually track 5–10 fingers.
What is a dead zone?
A strip or spot that ignores touches, often after a drop or screen replacement. Lines you draw will break where it is.
Phantom (ghost) touches appear on their own — what now?
Clean the screen and remove the case or protector. If touches keep appearing in the test, the digitizer may be faulty.