AutoCAD is a commercial computer-aided design and drafting software application. Developed and marketed by Autodesk, AutoCAD was first released in December 1982 as a desktop app running on microcomputers with internal graphics controllers. Import a wide variety of other formats including SolidWorks, Pro/ENGINEER, CATIA, Rhino, and NX. Drawing views, edge display, and location are instantly updated when an engineering change is made.