gCAD3D is described as '3D CAD CAM application that features an integrated 3D OpenGL viewer, a program interpreter for geometry and NC-commands in 3D, an integrated NC-processor, and a programming interface for user programs' and is an app in the Photos & Graphics category. There are more than 50 alternatives to gCAD3D for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPad. The best alternative is FreeCAD, which is both free and Open Source. Other great apps like gCAD3D are SketchUp (Freemium), LibreCAD (Free, Open Source), Autodesk AutoCAD (Paid) and SOLIDWORKS (Paid).
SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid...
LibreCAD (originally QCad then CADuntu) is an open source 2D CAD application for Windows, Apple and Linux. It is based on Qt, which is a leading cross-platform application and UI development framework.
AutoCAD is a leading CAD (computer-aided design) software used professionally throughout architectural, electrical, mechanical and other engineering and design industries. It was once available under a perpetual license but is now accessed solely through a subscription.
SOLIDWORKS is a leading 3D CAD software for design, analysis and product data management. SOLIDWORKS solutions can help boost productivity, harness intelligence, foster innovation, and facilitate collaboration.
DraftSight is a professional-grade, open 2D CAD product for users who want a better way to read, write and share DWG files. DraftSight is easy to use and is available for professional CAD users, students and educators to download and activate for free.
BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for...
BricsCAD the first all-in-one CAD design solution in .dwg that answers all your needs; 2D drafting, 3D modeling, mechanical design, and BIM. BricsCAD is a cost-effective, innovative, and familiar CAD solution.