Here, therefore, is a special article containing what we think are the best free AutoCAD alternatives. Unfortunately, the high price of AutoCAD software makes it very often not affordable for all budgets. What are the best free AutoCAD alternatives? Read our reviews of the top free CAD programs for technical 2D and 3D modeling design.ĪutoCAD was the first of the CAD programs that allow us to create designs in two or three dimensions, in such a way as to be used in different fields of engineering, architecture, mechanics, electronics, and so forth.