CloudCompare

CloudCompare is a 3D point cloud (and triangular mesh) processing software. It was originally designed to perform comparison between two 3D points clouds (such as the ones obtained with a laser scanner) or between a point cloud and a triangular mesh. It relies on an octree structure that is highly optimized for this particular use-case. It was also meant to deal with huge point clouds.

• Website: https://cloudcompare.org/
• License: GPL-2.0 check this[1]
• Source: https://github.com/cloudcompare/cloudcompare