Altium Designer Alternatives

A Cross Platform and Open Source Electronics Design Automation Suite

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

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.

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

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

Open Source

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

Open Source

DipTrace - Professional Schematic Capture and 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.

ExpressPCB

A Cross Platform and Open Source Electronics Design Automation Suite

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.

CircuitMaker is the best free PCB design software by Altium for Open Source Hardware Designers, Hackers, Makers, Students and Hobbyists.

OrCAD PCB Design Software – Printed Circuit Board design, PCB layout, and routing software for professional PCB designers.