LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
CorelDRAW Technical Suite X7 - Discover CorelDRAW Technical Suite 2019 and create technical illustrations with speed, accuracy, and precision. Download the free trial today!
FreeCAD - An open-source parametric 3D modeler
MagicPlan - The floor plan creation app magicplan lets you create dimensioned floor plans without actively measuring or drawing. With its Augmented Reality.
gCAD3D - 3D - CADCAM - Software for MS-Windows and Linux. Freeware
Design Master Electrical - Design Master Electrical is a MEP design software that allows calculations and drafting, organize files, manage time with calculations, design, and drafting.