The best Electronic Design Automation alternative to Circuit JS is QUCS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Circuit JS and 15 are Electronic Design Automation Tools so hopefully you can find a suitable replacement. Other interesting Electronic Design Automation Tool alternatives to Circuit JS are LTspice, Multisim, CircuitLab and CircuitJS1 Desktop Mod.
The Quite Universal Circuit Simulator (QUCS) is an integrated circuit simulator allowing the simulation and graphical presentation of results of large-signal, small-signal and noise behavior in circuits.
Most users think QUCS is a great Circuit JS alternative.
QUCS is the most popular Windows, Mac & Linux alternative to Circuit JS.
QUCS is the most popular Open Source & free alternative to Circuit JS.
LTspice IV is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators.
Multisim is industry-standard SPICE simulation and circuit design software for analog, digital, and power electronics in education and research.
Multisim is the most popular commercial alternative to Circuit JS.
Sketch, simulate, and share your circuits, entirely in your browser -- no install required. Easy schematic capture and powerful SPICE-like, mixed-mode circuit simulation helps EE students, electronics hobbyists, and electrical engineers design faster.
Almost everyone thinks CircuitLab is a great Circuit JS alternative.
CircuitLab is the most popular Web-based alternative to Circuit JS.
This electronic circuit simulator is highly interactive giving the feeling of playing with real components. It's very helpful for experimentation and visualization. It's a desktop version of the Circuit JS.
Software for Simulating Voltage and Currents of a text file net-list of a electronics components such as Resistors, Capacitors, inductors, transisters, Diodes, Voltage and Current Sources, etc.
SimulIDE is a simple real time electronic circuit simulator. It's intended for general purpose electronics and microcontroller simulation, supporting PIC and AVR. PIC simulation is provided by gpsim and avr simulation by simavr.
Qucs-S is a spin-off of the Qucs cross-platform circuit simulator. "S" letter indicates SPICE. The purpose of the Qucs-S subproject is to use free SPICE circuit simulation kernels with the Qucs GUI.
A virtual simulation environment for electronic circuits with support of digital and analog devices. It also provides virtual instruments and virtual debugging tools.
The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.
iCircuit is the easy to use electronic circuit simulator and designer - the perfect tool for students, hobbyists, and engineers.
iCircuit is the most popular iPad alternative to Circuit JS.
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Very similar, but paid with limited free mode