Free OrCAD (All Products) Alternatives

    The best free alternative to OrCAD (All Products) is KiCad, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to OrCAD (All Products) and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to OrCAD (All Products) are QUCS (Free, Open Source), LibrePCB (Free, Open Source), Autodesk EAGLE (Free Personal) and LTspice (Free).

    This page was last updated Nov 30, 2019

    1. KiCad is an open source software suite for electronic design automation (EDA) - designing schematics of electronic circuits and printed circuit boards (PCB). KiCad is developed by Jean-Pierre Charras.
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      Most users think KiCad is a great alternative to OrCAD (All Products).
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      The Quite Universal Circuit Simulator (QUCS) is an integrated circuit simulator allowing the simulation and graphical presentation of results of large-signal, small-signal and noise behavior in circuits.
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      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.
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      • Free PersonalProprietary
      • Mac
      • Windows
      • Linux
      Autodesk EAGLE is an electronic design automation (EDA) software. Enabling printed circuit board (PCB) designers to seamlessly connect schematic diagrams, component placement, PCB routing, and comprehensive library content.
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    2. LTspice IV is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators.


    3. 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 circuit design, schematic capture, simulation, prototyping, and production.
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      • FreeProprietary
      • Windows
      The World’s Most Powerful Free Schematic and PCB Layout
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      • Free PersonalProprietary
      • Online
      Schematics.com empowers engineers to design, share, and collaborate on circuit design online.
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      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 project, a full GPL'd suite of Electronic Design Automation tools.
    4. oregano - An electrical engineering tool for GNOME oregano is an application for schematic capture and simulation of electronic circuits.
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