Browser input visualizer
Touchscreen test
Trace the test surface, place several fingers at once, and inspect exactly what this browser reports for touch, pen, or mouse input.
Checking Pointer Events support…
How to use
- Drag one finger slowly across the whole surface, including edges and corners.
- Place multiple fingers down together to compare active and peak contact counts.
- Repeat any blank-looking area in several directions before drawing a conclusion.
Touch or drag here. Mouse and pen input can preview the visualizer, but only browser-reported touch contacts count toward touch coverage.
Page scrolling and browser gestures are suppressed only when a contact begins inside the bordered surface. The rest of the page keeps normal scrolling.
Session summary
Counts reflect events delivered to this page
Live contacts
Optional details appear only when values differ from browser defaults
No active pointer contacts.
Recent contact history
0/24 entries · newest first
- No contact events recorded yet.
Coverage, not a verdict
A blank cell means this page has not received a touch event there. Move more slowly and repeat the same area in several directions, orientations, and another app. A browser test cannot declare a physical dead zone or identify its cause.
Reported details have defaults
Position is relative to this surface. Contact size, pressure, and pen tilt appear only after the browser supplies a non-default value. Many devices report default pressure or 1 × 1 CSS-pixel size even when no such sensor detail is available.
No-touch desktop?
Use a mouse to confirm the visualizer responds, but that is only a single mouse pointer. A zero browser touch-point hint is not proof that hardware is absent or faulty. This tool requests no permission and does not send or store contact data; public-page usage analytics is described in the Privacy Policy.