SolidWorks is a powerful 3D CAD software developed by Dassault Systèmes, designed for modelling, simulation, and documentation in mechanical engineering. It allows engineers and designers to create precise 3D models of parts and assemblies, perform motion and stress analysis, check manufacturability, and generate 2D drawings. SolidWorks supports parametric modelling, which means designs can be easily modified by changing dimensions or relationships. It is commonly used in industries like automotive, aerospace, robotics, machinery, and product development due to its user-friendly interface, extensive toolset, and strong integration with CAM and simulation tools.