What to do
Draw slow straight and diagonal strokes at a steady speed. Look for gaps or jumps in the trace.
Touch Drawing Smoothness Test
Draw lines on a touch canvas to inspect gaps, wobble, jitter, and stroke smoothness.
Draw slow straight and diagonal lines
Active Points0
Max Multi-Touch0
Last InputNone
PressureUnavailable
Continuous eventsNot measured
Run NotesUse real touchscreen hardware for the most meaningful result. Mouse input is only a fallback.
Local history
Save a result to keep it in this browser. History holds your five most recent saved results for this test.
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How to use this test
What to look for
The continuity reading describes the events delivered to the browser and depends on drawing speed and scheduling.
Contact positions, identifiers, and pressure come from Pointer Events where available. Pressure may be a default value on unsupported hardware. Browser gestures and palm rejection can interrupt contact tracking.