Teaching-focused digital circuit simulator

A High-performance Timing Analysis Tool for VLSI Systems

A free, open source, online digital circuit/logic designer.

Standalone (offline) version of the Circuit Simulator with small modifications based on modified NW.js.

⚡ An interactive electronic circuit simulator

SiEPIC EBeam PDK & Library, for SiEPIC-Tools and KLayout

XicTools: Xic graphical editor, WRspice circuit simulator, and accessories. for electronic design.

ACT hardware description language and core tools.

Circuit simulator written in python

简易在线电路仿真系统

Frequency domain, multi-tone harmonic balance, simulation of scattering parameters and noise in nonlinear circuits containing Josephson junctions.

Implementing a full-on electronic circuit simulator, studying the whole concept and physics behind it!

A digital logic simulator inspired by Logisim.

A simple electric circuit simulator with pleasant GUI written in C++ using olc Pixel Game Engine.

EDA Schematic Capture and Simulation powered by NgSpice

⚡ Analog circuit simulator! -- https://hlorenzi.github.io/circuitsim/

A graphical editor and event-driven simulator for digital circuits

Logic network simulator that runs in your browser

A frontend for NgSpice. (Archived and no longer maintained)

A MATLAB project that uses modified nodal analysis to calculate the node voltages of any analog circuit.