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Free Autodesk Inventor Alternatives

The best free alternative to Autodesk Inventor is FreeCAD, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Autodesk Inventor and 16 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Autodesk Inventor are SketchUp, LibreCAD, Autodesk Fusion 360 and BRL-CAD.

Autodesk Inventor alternatives are mainly CAD Software but may also be 3D Modelers or 3D Printing Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Autodesk Inventor.
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  • Windows

Autodesk® Inventor® products offer a comprehensive, flexible set of software for 3D mechanical design, product...

Learn more about Autodesk Inventor

  1. FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License).

    Screenshot
    FreeCAD vs Autodesk Inventor opinions
    Some users think FreeCAD is a great alternative to Autodesk Inventor, some don't.

    Lots of good feature and great compatibility

    Positive comment ago
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    -8

    Would not open of arch linux

    Negative comment ago
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    0

    Wasn't able to do anything with it

    Negative comment ago
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    6
  2. SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid...

    Main UI
    SketchUp vs Autodesk Inventor opinions
    This alternative is disputed. SketchUp is still a legitimate alternative to Autodesk Inventor, but it might have issues that some users think are important.

    Inventor is significantly more detailed and allows for the simulation of motion. Sketchup is a pretty rudimentary 3d drawing tool, and does not produce very high quality models or measurements, etc.

    Negative comment ago
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    13

    Sketchup is not parametric.

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    0

    Sketchup is very inaccurate compared to Inventor. While it is a good beginners tool, it cannot be used to make accurate engineering solutions

    Negative comment ago
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    2


  3. LibreCAD icon

    LibreCAD

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com

    LibreCAD (originally QCad then CADuntu) is an open source 2D CAD application for Windows, Apple and Linux. It is based on Qt, which is a leading cross-platform application and UI development framework.

    On Mac
    LibreCAD vs Autodesk Inventor opinions
    This alternative is disputed. LibreCAD is still a legitimate alternative to Autodesk Inventor, but it might have issues that some users think are important.

    Inventor is for 3D CAD, LibreCAD is for 2D CAD.

    Negative comment ago
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    14

    Inventor is for 3D CAD, LibreCAD is for 2D CAD.

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    0

    3d vs 2d. the end results of printed plans may not be too different but there's a large difference in use and also some different purposes for use.

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    1

    LibreCAD is a simple 2D program without 3D modeling

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    3
  4. Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation. Free license available for students and hobbyists.

    Freeform modeling & sculpting
    Some users think Autodesk Fusion 360 is a great alternative to Autodesk Inventor, some don't.
  5. BRL-CAD icon

    BRL-CAD

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD

    BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for...

    PA-63 Extractor


  6. Shapr3D is a revolutionary 3D modeling software created exclusively for your iPad Pro and your Apple Pencil.

    Screenshot
  7. Designspark Mechanical icon

    Designspark Mechanical

    • FreeProprietary
    • Windows

    DesignSpark Mechanical is a 3D modeling software reported to be easy to use so that all engineers will be able to create and share models.

    Screenshot
    Most users think Designspark Mechanical is a great alternative to Autodesk Inventor.
  8. MakerSCAD icon

    MakerSCAD

    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS

    MakerSCAD is a web-based parametric 3D design software with a block-based programming language to create objects for 3D printing, animations, games and websites.

    Discontinued

    Site certificate expired. Software itself hasn't been updated in a very long time, is incomplete, and doesn't function

    Screenshot
  9. Autodesk 123D Design icon

    Autodesk 123D Design

    • Free PersonalProprietary
    • Mac
    • Windows
    • iPad

    Free download software to design 3d models for 3d printing and fabrication for Windows, Mac OS X, iphone, ipad

    Discontinued

    Autodesk has discontinued their line of 123D apps and has consolidated features and workflow into Tinkercad, Fusion 360, and ReMake.Blog post:http://blog.123dapp.com/2016/12/important-news-about-the-next-chapter

    Screenshot
    Autodesk 123D Design vs Autodesk Inventor opinions
    pros, cons and recent comments

    It's easy and fun to use. It can even make stop motion animations if you manage to find out how! If you want a free and easy alternative to Autodesk Inventor, then this is for you. (It's also suitable for 3D Printers!)

    Positive comment ago
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    0
  10. VARKON

    • FreeOpen Source
    • Windows
    • Linux

    Varkon is a very powerful parametric 2D/3D CAD, modeling and application development tool for engineering, design, architecture, etc. It does 2D drafting, 2D and 3D modeling, sculptured surface modeling, and even animations.

    Discontinued

    The project seems no longer developed. Last version, 1.19E, released in November 2012, can be still downloaded from SourceForge.

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Showing 10 of 16 alternatives