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 a free, open-source alternative to AutoCAD, ideal for 2D drafting with a user-friendly interface, while AutoCAD is a comprehensive, industry-standard software with advanced features for both 2D and 3D design, but comes at a high cost and requires more resources.