Stylus & Drawing Tablet Test

Real-time parameter monitoring tool designed for Apple Pencil, Wacom, Surface Pen, and active styluses.

Live Pressure

0.0%

Max: 0%

Tilt Angle

X: 0°

Y: 0°

Range: -90° ~ +90°

Barrel Roll

0°

Tip Status

Disconnected

Stylus Sampling Rate

0Hz

Max: 0 Hz

Coordinates

Test Canvas

Stylus & Tablet FAQ

What is Pressure Sensitivity?

Pressure sensitivity indicates how many force levels a pen or tablet can detect (e.g., 2048, 4096, or 8192 levels). Browsers render this as a smooth value between 0.0 and 1.0 for precise stroke weight dynamics.

Tilt Angle vs. Barrel Roll (Twist)

Tilt Angle (Tilt X/Y) tracks the pen angle relative to the screen to simulate pencil shading. Barrel Roll (Twist) supports advanced pens like Apple Pencil Pro to rotate flat brush orientations in real time.

Why is Hover Preview useful?

Sensors detect pen coordinates even when the tip is floating slightly above the glass. This allows artists to preview brush size and landing position before drawing.