The paper presents MeshLab, an open source, extensible, mesh processing system that has
been developed at the Visual Computing Lab of the ISTI-CNR with the helps of tens of
students. We will describe the MeshLab architecture, its main features and design objectives
discussing what strategies have been used to support its development. Various examples of
the practical uses of MeshLab in research and professional frameworks are reported to
show the various capabilities of the presented system.