Computer Simulations

A Cross Platform and Open Source Electronics Design Automation Suite

LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.

OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication

Animated electronic circuit simulator using ideal components to visualize voltage and current.

Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...

Open Source

Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.

Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...

Logisim is an educational tool for designing and simulating digital logic circuits.

Ngspice is a mixed-level/mixed-signal circuit simulator.

A simulator for digital circuits.

Solve Elec is a free educational program to draw and analyze electrical circuits.

LibrePCB is a free EDA software to develop printed circuit boards.

Open Source

Sketch, simulate, and share your circuits, entirely in your browser -- no install required.