Free alternatives to AutoCAD for Windows
Start by deciding if your work is 2D drawings or 3D models, because the free tools split along that line.
LibreCAD Free
Updated
2 Nov 2026
2 Nov 2026
Focused 2D drafting that opens DXF files.
FreeCAD Free
Updated
2 Nov 2026
2 Nov 2026
Parametric 3D modelling, with 2D drawings generated from the model.
What you give up
Native DWG support is limited, which matters if your clients or consultants send DWG files. Check this with a real project file first.