IconVault's Pointer Events Playground turns your screen into an instrument for the Pointer Events API. Draw with mouse, fingers, and stylus on the input pad: every pointerId gets its own color-coded trail whose width follows pressure, while live readout cards show the raw values your browser reports (pressure, tiltX, tiltY, twist, contact size, and coalesced event counts). A 10-second session recorder captures event rates and maxima into an exportable JSON report. It is free and runs fully in your browser.

Pointer Events unify mouse, touch, and pen input into one API, but the data quality differs wildly per device, which is exactly what this lab reveals: mouse pressure is always 0.5, touch pressure is an approximation, and a real stylus reports genuine pressure and tilt. Watching coalesced events per frame teaches you how the browser batches high-frequency movement, knowledge that matters for smooth drawing apps and gesture recognizers.