A circuit simulator with graphical user interface (GUI)
TimingEditor is a tool to graphically draw and edit timing diagrams.
Convert any image to gerber and drill files
Digital circuit simulator
show and configure
Convert DXF drawings of circuit boards to gEDA-PCB files.
openCarac : Automatize your Spice simulator runnings
Cadence 614 installing scripts with source files
A graphical Finite State Machine (FSM) designer.
An HDL alternative to PCB graphical schematic capture tools.
Simulation Tool for Phase-Locked Loops
is a Qt program to generate SMD chip shooter code