Logisim

Logisim is a graphical application that enables users to design and simulate digital logic circuits. Operating on Linux systems, the software provides a grid-based canvas where users can place circuit components such as gates, flip-flops, and input-output pins, connecting them with wires to build complex logic systems. The simulation runs in real time, updating the visual state of the wires and components as inputs change.

The tool is frequently utilized in educational settings to teach computer organization and digital electronics concepts. Users can construct circuits hierarchically by creating subcircuits and reusing them within larger designs. Logisim is released under the GNU General Public License version 2.0 or later, making its source code accessible for modification and redistribution under the terms of the license.