cdt2d
Constrained Delaunay Triangulation in 2D
poly2tri
A 2D constrained Delaunay triangulation library
pnltri
Polygon near-linear time triangulation (based on Seidel's algorithm) with ear clip for small cases. Handles degenerate cases of colinear edges and vertices touching edges.
poly_run
Javascript library to visualize the effect of Delaunay triangulation