Draft it is described as 'Draft It V4 is a powerful, easy to use 2D CAD Software package that is completely free to use. No restrictions means you're free to create, save and print your work with our unlimited free version' and is an app in the Photos & Graphics category. There are more than 50 alternatives to Draft it for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and iPhone. The best alternative is SketchUp, which is free. Other great apps like Draft it are LibreCAD (Free, Open Source), Autodesk AutoCAD (Paid), SOLIDWORKS (Paid) and OpenSCAD (Free, Open Source).
Open CASCADE Technology is a software development platform freely available in open source. It includes components for 3D surface and solid modeling, visualization, data exchange and rapid application development.
ArchiCAD offers computer aided solutions for handling all common aspects of aesthetics and engineering during the whole design process of the built environment — buildings, interiors, urban areas, etc.
nanoCAD is a pro-grade 2D CAD system with native DWG support and full customizability. It is totally free, for business, professional, or personal purposes. It is fast, lightweight, capable, and , unlike most free CAD programs, completely uncrippled. nanoCAD includes:
CATIA (Computer Aided Three-dimensional Interactive Application) (in English usually pronounced /k?'ti?/) is a multi-platform CAD/CAM/CAE commercial software suite developed by the French company Dassault Systèmes.
GstarCAD is well-known alternative CAD software of high compatibility with ACAD. With 27 years of continuous improvement and innovation, today GstarCAD is far ahead in performance, stability and becomes leading CAD software in the world.
ZWCAD software, as a highly reliable and powerful CAD tool, meets the needs of 2D/3D design & drafting industry, including architecture, engineering, construction (AEC), mechanics, electronics...and anyone who creates CAD drawings.