Online Touch Screen Test for Dead Zones

A touchscreen can look perfect while part of the digitizer fails to register input. PixelExams includes an interactive grid that lets you drag across the display and check whether touch is detected throughout the screen.

Run the test on the phone, tablet, or touchscreen laptop you want to inspect. Move slowly across the full area, including edges and corners. A consistent gap in the trace may indicate an unresponsive zone, while a single missed box can also be caused by lifting your finger, browser gestures, or an accidental interruption.

This browser test does not access your camera, microphone, files, or personal data. It is useful after a drop or screen replacement and when inspecting a used device, but it is not a certified hardware diagnostic.

PixelExams is a guided visual inspection utility. It does not automatically diagnose hardware defects, calibrate a display, or determine warranty eligibility.