1. GreinerhormannGreiner-Hormann polygon clipping algorithm. Does AND, OR, XOR. Plays nicely with Leaflet. Handles non-convex polygons and multiple clipping areas. ~3kb footprint, no dependencies
7. MartinezMartinez-Rueda polygon clipping algorithm, does boolean operation on polygons (multipolygons, polygons with holes etc): intersection, union, difference, xor