Proteus PCB design Alternatives

A Cross Platform and Open Source Electronics Design Automation Suite

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

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

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

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

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

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.

PCB Design Software

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

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

KTechLab is an IDE for microcontrollers and electronics.

Ngspice is a mixed-level/mixed-signal circuit simulator.

DipTrace - Professional Schematic Capture and PCB Design Software