It works if the device and browser expose touch or pointer input.
Touchscreen Tester
Test touch points, pressure and multitouch support
Pointer Events can track multiple points inside a safe area
The tool uses pointer events and touch-action none in the test area to visualize simultaneous contacts, pointer type and pressure when the hardware exposes that data.
Touch and drag inside the area
- Use one or more fingers inside the test area.
- Watch circles, active points and reported type.
- Lift your fingers to clear active points.
Sources and references for this tool
These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.