Catmull-Rom Spline Editor

Add Points

Click on canvas to add control points. Drag points to move them.

Spline Parameters

Tension (α): 0.5

α = 0: Uniform
α = 0.5: Centripetal (no cusps/loops)
α = 1: Chordal

Display Options

Show Tangents

Show Control Polygon

Compare with Bezier

Closed Curve

Statistics

Control Points

Segments

Curve Length

Selected Point

Legend

Catmull-Rom

Bezier (compare)

Control Points

Tangents

About

Catmull-Rom splines interpolate through control points (unlike Bezier). Centripetal parameterization (α=0.5) guarantees no cusps or self-intersections, even with sharp turns in control points.