* [http://bradwarestudios.com/downloads/fun/Digital_Logic_Simulator/ Digital Logic Simulator v0.4 - Brad-Ware Studios' free program that supports real-time edit and simulation, as well as abstracting. Include entire scenes that you have created, as a single chip.]
* [http://sol.gfxile.net/atanua/ Atanua is openGL based software for real time designing and simulating digital logic circuits]
* [http://tams-www.informatik.uni-hamburg.de/applets/hades/webdemos/index.html Hades – a framework for interactive, discrete-event based simulation.]
* [http://www.codeplex.com/simulo Simulo – Free Digital Logic Simulator ]
* [http://www.logiccircuit.org/ LogicCircuit – is educational software for designing and simulating digital logic circuits.]
* [http://www.digitalcircuitdesign.com/ Digital Logic Design – is educational software for designing and simulating digital logic circuits.]
* [http://www.esng.dibe.unige.it/deeds/Index.htm Deeds - free educational suite for digital logic circuit simulation and design, including finite state machines (FSM) and microprocessors simulation and design facilities.]