geda is a suite of Electronic Design Automation (EDA) tools
used to make electrical circuit design, simulation and prototyping/
production easier/doable.  The suite includes the gschem schematic
capture program, the gnetlist netlister, the gattrib attribute editor
along with several other utility programs.

Homepage:
http://www.repo.hu/projects/geda-archive/www.geda-project.org/
