OrCAD (All Products) Alternatives

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

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)

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

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

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.

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

Open Source

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

PCB Design Software

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

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

Its advanced simulation engine can handle both analog and digital circuits and features realtime...

Contribute to CEBA77/circuitjs1 development by creating an account on GitHub.

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