There are many Open Source CAD software for Engineers and small industries can use below is the list of open source CAD Software.
FreeCAD: A parametric 3D CAD modeler for designing real-life objects of any size.
LibreCAD: A 2D CAD application that supports industry-standard DWG and DXF files.
OpenSCAD: A script-based 3D CAD modeling software that creates 3D models from 2D shapes.
BRL-CAD: A powerful cross-platform CAD tool for solid modeling, geometry editing, and high-performance ray-tracing.
QCAD: A 2D CAD application that uses DXF as its native file format, with support for DWG and other file formats.
Blender: A powerful and flexible 3D modeling and animation software with a wide range of tools and capabilities.
KiCAD: An open source software suite for electronic design automation (EDA) that includes schematic capture and PCB layout tools.
OpenCASCADE: A 3D modeling software with a wide range of functionalities for modeling, analysis, and simulation of complex structures.
PyCAM: A toolpath generator for CNC machines that creates toolpaths for 3-axis CNC milling machines.
Salome-Meca: A software platform that integrates CAD and simulation tools for finite element analysis (FEA) and computational fluid dynamics (CFD) simulations.
Note that some of these software options may require a certain level of technical expertise to use, but they all offer powerful features and functionalities for various CAD-related tasks.
Posted from my Blog Mechnexus.com with Exxp : https://mechnexus.com/list-of-open-source-cad-software/