is a free and open source Computer Aided Design software. It is a robust system built over Eclipse's Rich Client Platform fully based on plug ins.

Concept Architecture

is a free interior design application 
that helps you draw the plan of your house, arrange furniture on it and visit the results in 3D.

is easy to use and does not require a computer to run last generation. It allows to design a house online or build a house online.

is a powerful open source cross-platform solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis

is a free Open Source CAD application for Windows, Apple and Linux. Support and documentation is free from our large, dedicated community of users, contributors and developers.

is one of the earliest computer assisted design tools for synthetic biology. The software is a bioinformatics tool developed and maintained by GenoFAB

is a Computer-Aided Design software tool for Synthetic Biology. It combines visual interface with programming API (Python, Octave, C, Ruby)

 is a professional grade CAD tool. It has a familiar interface, powerful drafting and design tools, native DWG compatibility, and an open API.