FreeCAD, Autodesk AutoCAD, SOLIDWORKS, ArchiCAD, LibreCAD, Autodesk Inventor, Catia, DraftSight, ZWCAD, TurboCAD, Designspark Mechanical, DeltaCAD, QCAD, SALOME, DoubleCAD XT, VARKON, Medusa4, CMS IntelliCAD, HeeksCAD, progeCAD Smart, uMake, Visual CADD, A9CAD, BricsCAD, IPocket Draw, Dune 3D, gCAD3D, NttCAD, General CADD Pro, ABViewer, ar-cad freeCAD, NaroCAD, CADintosh, IronCAD, WinCAD, TouchCAD, iCADMac, Punch! ViaCAD Pro, BabaCAD, ARES Commander, devCAD, CAD 6, hsCADCreator, CADKON+, CAD X11 Free, AcceliCAD, Pocket Plans, RealCAD, DesignCAD, BlueCAD 2.0, Punch! ViaCAD 2D, RealCADD, BlueCAD 1.0, Simulia are some alternatives to NanoCAD.