rect-packer 
Pack multiple rectangles into a larger one. Can be used for packing sprites into a texture for 2d games. Uses skyline heuristic. Heavily tested with random data to ensure that it always produces correct result.
Pack multiple rectangles into a larger one. Can be used for packing sprites into a texture for 2d games. Uses skyline heuristic. Heavily tested with random data to ensure that it always produces correct result.