Circuit Simulator (CircuitJS1) Alternatives

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

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.

RealityMAX is the most powerful free 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.

Visit website freemium $40.0 / Monthly (Pro with up to 500 GB of storage space)

A Cross Platform and Open Source Electronics Design Automation Suite

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

Open Source

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

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

Open Source

Xcos is a graphical editor to design hybrid dynamical systems models.

EasyEDA - Web-based EDA suite; runs in browser.

OpenModelica – A Free Modelica Environment!

Autodesk EAGLE is an electronic design automation (EDA) software.

All about General Public License (GPL) and Electronic Design Automation (EDA) software tools

Spectrum Software makes the Micro-Cap SPICE simulator, a SPICE and PSPICE® compatible SPICE software analog and digital circuit simulator for electronic design automation circuit simulation.

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