MeshFlatten is a standalone application. This software can unfold a 3D mesh to be a 2D mesh. The features include: 1. Import .stl file; 2. Unfold 3D mesh to be a 2D mesh; 3. Export the 2D mesh to .stl file; 4. Export the boundary line of the 2D mesh to .igs file; 5. Easy to use. Just click one button to unfold 3D mesh to be 2D mesh.