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
LibreCAD is an open-source 2D CAD application that excels in user customization and community support, while QCAD, though not fully open-source, offers a more user-friendly interface and additional features for 3D design. Users seeking a free and open-source solution may prefer LibreCAD, whereas those looking for commercial support and a more intuitive experience may opt for QCAD.