Alternatives to OrCAD (All Products) for all platforms with Open Source License

  • KiCad

    KiCad is an open source software suite for electronic design automation (EDA) - designing schematics of electronic circuits and printed circuit boards (PCB). KiCad is...

    Free Open Source Mac Windows Linux

    KiCad icon
  • Fritzing

    Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to take the step from physical prototyping to actual product. We are...

    • Discontinued The program seems to be no longer updated. Last version, 0.9.3b, released in June 2016, can be still downloaded from the official website.

    Free Open Source Mac Windows Linux

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    Fritzing icon
  • QUCS

    The Quite Universal Circuit Simulator (QUCS) is an integrated circuit simulator allowing the simulation and graphical presentation of results of large-signal...

    Free Open Source Mac Windows Linux

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    QUCS icon
  • gEDA Project

    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...

    Free Open Source Linux

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    gEDA Project icon
  • LibrePCB

    LibrePCB is a free EDA software to develop printed circuit boards. It’s currently under heavy development to bring out first stable releases as soon as possible.

    Free Open Source Mac Windows Linux

    LibrePCB icon
  • Ngspice

    Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages: Spice3f5, Cider1b1 and Xspice. Ngspice is part of gEDA...

    Free Open Source Mac Windows Linux

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    Ngspice icon
  • Oregano

    oregano - An electrical engineering tool for GNOME oregano is an application for schematic capture and simulation of electronic circuits. The actual simulation is...

    Free Open Source Linux

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    Oregano icon
  • Qucs-S

    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...

    Free Open Source Linux

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  • TinyCAD

    TinyCAD is an open source schematic capture program for MS Windows. Use TinyCAD to produce professional circuit diagrams and export net list information to PCB...

    Free Open Source Windows

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  • eSim

    eSim (previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design.

    Free Open Source Windows Linux

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  • PCB Elegance

    PCB Elegance is a suite of circuit board design tools for Windows. Including schematic capture, board layout, and manufacturing file generation. First released in 1998...

    Free Open Source Windows

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    PCB Elegance icon

Platforms

Desktop

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