CircuitLab 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.

Design and order Boards in Minutes

freemium

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)

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

For engineers who want to expand the possibilities of power electronics.

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

A Cross Platform and Open Source Electronics Design Automation Suite

Open-source digital logic simulator

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

Atanua is a real-time logic simulator, designed to help in learning of basic boolean logic and...

LogicCircuit is educational software for designing and simulating digital logic circuits.

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

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