LibreCAD is a free Computer-aided design (CAD) application for 2D design. It works on Linux, OS X, Unix and Windows operating systems. Developed by Ries van Twisk
License: Open Source
SolveSpace offers parametric modeling capabilities suitable for both 2D and 3D designs, making it versatile for various engineering applications. In contrast, LibreCAD is focused on 2D drafting, making it ideal for simpler design tasks.