DeltaCAD is described as 'Worlds easiest CAD program!!! CAD software should not be hard to use! With DeltaCad you can be creating your first CAD drawing within minutes. Ease of use was the primary design feature of Delta Cad'. There are more than 25 alternatives to DeltaCAD for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and PortableApps.com. The best alternative is LibreCAD, which is both free and Open Source. Other great apps like DeltaCAD are DraftSight (Paid), BricsCAD (Paid), QCAD (Free Personal) and nanoCAD (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.
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.
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.
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:
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.
progeCAD Smart 2009 is a limited version of progeCAD . It is free for private, non-commercial use only. You need to register the software to continue using it after 30 days. Of course registration is totally free.
Free CAD software for your DWG and DXF files: A new 2D CAD product that provides professional CAD users, with a better way to read, write and share DWG files. Portable 2D CAD application for Windows with DWG/DXF support