Logic Gate Simulator 1.4

Logic Gate Simulator is an open-source tool for experimenting with and learning about logic gates. The simulator tool was originally designed for CIS students at South Puget Sound Community College but is free for anyone to use and modify under the GPL v3.

v1.4 [Jul 5, 2011]
A variety of visual modes:
including isolating partial circuits to show use,
hiding intermediate gates,
and not showing different colors for true/false (useful for preparing circuits for use in documents).