CAD software, or Computer-Aided Design software, is a tool that helps designers and engineers create detailed drawings and models of objects. It allows users to visualize their ideas in 2D or 3D, making it easier to plan and modify designs. This software is widely used in various fields, including architecture, engineering, and product design. With CAD software, users can efficiently draft plans, simulate how a product will function, and even prepare documents for manufacturing. Popular examples of CAD software include AutoCAD and SolidWorks, which provide powerful features to enhance creativity and precision in design projects.