IGG^TM is an interactive geometry modeler and block-structured grid generator software for 2D and 3D complex geometries.

IGG^TM geometry modeler can import geometries in common CAD formats or generate simple and complex models through NURBS curves and surfaces.

IGG^TM provides features such as block mapping, boundary shape clustering, snapping functions, internal surfaces and edges, algebraic and elliptic smoothers for surface and volume meshes, CAD projection, and a script replay option. IGG^TM uses the CGNS standard file format and is available within most of the commercial CFD codes.