The biggest difference? LibreCAD is totally free and open source.

This is a 2D CAD software that looks and behaves very similar to Adobe’s option. LibreCAD may be the closest competitor in the way it operates to AutoCAD. That versatility is why we suggest anyone interested in a good AutoCAD alternative start with SketchUp. It is great for both architectural and mechanical engineering projects. You can design anything from a hotel building, a house, all the way down to tiny gears and small mechanical parts. That makes it feel similar to building something in real life, and less in the virtual space. SketchUp is a unique 3D modeling program in that you draw shapes and then extrude them by clicking and dragging to distance. It has a fully functional free version, and the paid version simply adds another layer of depth to the software. SketchUp is one of the most widely used 3D modeling programs in the world. 7 Free and Paid Alternatives to AutoCADħ Free and Paid Alternatives to AutoCAD 1.

Open source 2d cad