CAD

Alliance
- CAD tools
Archimedes
- Software for designing and simulating submicron semiconductor devices
Atlc
- Package for designing and analyzing electrical transmission lines and directional couplers
BRL-CAD
- Is a powerful Constructive Solid Geometry (CSG) solid modeling system
Darwin2k
- Robotics design and simulation program
Electric
- CAD electrical circuit design system
Figura
- CAD/CAM software whit a 3D sketcher built on a distributed architecture(CORBA).
FreeCAD
- Computer Aided Drawing
GLE
- C functions that draw extruded surfaces
GSpeakers
- Loudspeaker design kit
GnuCAD
- Unfinished project to write a free CAD system
LibStroke
- Stroke translation library
Oregano
- Software for schematic capture and simulation of electrical circuits
PCB
- Designs printed circuit board layouts
Profoil-WWW
- Wind tunnel data analyzer
PythonCAD
- CAD package written in Python
QCad
- 2D CAD program
Skidbladnir
- Tool to solve technical problems
TkGate
- Digital circuit simulator and graphical editor
Umbrello UML Modeller
- Creates diagrams of software and other systems
Varkon
- A parametric CAD-tool
ViPEC
- Network analyser for electrical networks
aetherspace
- Software to produce alternative energy systems
gEDA-gaf
- Tools for electronic circuit design
sc
- Station controller that interfaces with semiconductor manufacturing equipment
vtracer
- Verilog Testbench auxiliary tool