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.
LibreCAD vs DraftSight opinions
Commands are long winded - commands use not clear - struggles with DWG files
Very basic. Unable to create sheets and view ports. Doesn't work with DWG files. Is not a suitable alternative to DraftSight.
Simple and much faster. Needs to be able to import multiple files at once and be able to set default save types.
Doesn't open DWG files like Draftsight.
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...
MakerSCAD is a web-based parametric 3D design software with a block-based programming language to create objects for 3D printing, animations, games and websites.Discontinued
Site certificate expired. Software itself hasn't been updated in a very long time, is incomplete, and doesn't function
2-D engineering drawing editor that supports hierarchical object description. It is inspired by Hewlett-Packard's proprietary HP PIGLET (Personal Interactive Graphic Layout EdiTor), which later became the commercial Graffy editor by DURST CAD.This app doesn't have any features at the moment.
Archimedes is a free and open source CAD (Computer Aided Design) software. It is a robust system built over Eclipse’s Rich Client Java Platform fully based on plug ins. This means it is easily extensible but also has a pretty thin core that allows you to select the features you...
The project seems no longer developed. Last version, 0.66, released in June 2012, can be still downloaded from SourceForge.
gCAD3D is a 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.
SAMoCAD designed to create simple drawings, primarily to architectural drawings. Development of the program is far from complete, but it is already possible to draw. There is partial DXF format support, at the moment almost all drafted in the program can be saved in DXF and can...This app doesn't have any features at the moment.