Touchscreen Test
A free test page for any touchscreen: a phone, tablet, all-in-one, kiosk, POS terminal, or 2-in-1 laptop. Confirms touch registers, maps whether the whole screen responds (dead zones are the usual complaint), and checks whether multi-touch works. Useful when one corner stops responding, a protective film blocks part of the digitizer, or pinch-to-zoom quits after a driver update.
Read the Touchscreen Test guide for help reading the verdict or fixing each failure mode.
Configuration
Takes about 30 seconds (most of it is you tapping and dragging across the screen). All input stays in this browser tab; nothing is uploaded.
Diagnostic complete
Touch input is available
Reading navigator.maxTouchPoints, ontouchstart, the coarse-pointer media query, and PointerEvent support.
Touch points register across the screen
Tap and drag across the whole capture area. Each grid cell fills in when it is touched, so dead zones stand out.
Drag your finger across every part of the box below. Reach into all four corners and the edges. Each grid cell turns green when a touch lands in it, so any cell left gray is a spot the screen did not register. Use several fingers at once if you like. Tap Done when you have covered the whole area.
- Distinct touches
- 0
- Cells covered
- 0 of 0
- Peak at once
- 0
Multi-touch works
Measured from the capture above: the most simultaneous touches seen at once. 2 or more means multi-touch works.