detect-collisions
Points, Lines, Boxes, Polygons (also hollow), Ellipses, Circles. RayCasting, offsets, rotation, scaling, bounding box padding, flags for static and ghost/trigger bodies
polliwog-types
TypeScript types and JSON Schema for polliwog, the Python 2D and 3D computational geometry library
hyla
2D and 3D computational geometry library in TypeScript
dwindle
Fast continuous level of detail geometry simplification using the Visvalingam area approach. Provides methods for simplifying to a target point count or percentage in addition to point-area significance.