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Open Source Altium Designer Alternatives

The best open source alternative to Altium Designer is KiCad. If that doesn't suit you, our users have ranked more than 25 alternatives to Altium Designer and 13 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Altium Designer are Fritzing, QUCS, LibrePCB and gEDA Project.

Altium Designer alternatives are mainly Circuit Simulators but may also be Electronic Design Automation Tools or CAD Software. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Altium Designer.
This page was last updated May 12, 2022
  • Windows

PCB Design Software.

Learn more about Altium Designer

  1. KiCad

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    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.

    KiCad vs Altium Designer opinions
    Most users think KiCad is a great alternative to Altium Designer.
    mcgiwer

    It's free and provide very good possibilities for circuit and PCB boards design

    Positive comment about 1 year ago
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    Ease of schematic and pcb creating. BOM creation is not very good as excel templates cannot be used so this becomes a largely manual process. Most of the add-on tools cannot be added regardless of what the instructions say. Following the instructions usually ends in some sort of crash. Import/translation tools never install regardless of the instructions. But, with all of that said KiCad is still the best free alternative to Altium Designer.

    Positive comment over 1 year ago
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  2. Fritzing

    • Mac
    • Windows
    • Linux

    to design circuits, as well as so called "layouts", be it PCB or stripboard or breadboard...

    Fritzing vs Altium Designer opinions
    Some users think Fritzing is a great alternative to Altium Designer, some don't.

    That's a good scheme creator for arduino developpement, but it's not an alternative for professional designer software.

    Negative comment almost 2 years ago
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    fritzinf doesnt allow simulation

    Negative comment over 6 years ago
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  3. QUCS

    • 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.

  4. LibrePCB

    • 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.

    LibrePCB vs Altium Designer opinions
    pros, cons and recent comments
    dbrgn

    The project is still fresh, but very promising. The developers have spent a lot of time thinking about proper a library file format that avoids problems of current open source EDA suites and will make creating and sharing comprehensive parts libraries easier. It is also much better regarding usability than current alternatives like KiCAD.

    Positive comment about 4 years ago
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  5. gEDA Project

    • FreeOpen Source
    • Mac
    • Linux

    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.



  6. Oregano

    • FreeOpen Source
    • Linux

    oregano - An electrical engineering tool for GNOME.

  7. Circuit Diagram

    • FreeOpen Source
    • Windows
    • Online

    Circuit Diagram is a free application for making electronic circuit diagrams and exporting them as images. Design circuits online in your browser or using the desktop application.

  8. Ngspice

    • 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.

  9. eSim

    • FreeOpen Source
    • Windows
    • Linux

    eSim (previously known as Oscad / FreeEDA) is an open source EDA tool for circuit design, simulation, analysis and PCB design. It is an integrated tool built using open source software such as KiCad and .

  10. Qucs-S

    • FreeOpen Source
    • Linux

    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 circuit simulation kernels with the Qucs GUI.

Showing 10 of 13 alternatives