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Dune3d

Dune3d is a free, open-source CAD and 3D modelling app for Windows and macOS. Dune 3D is a parametric 3D CAD application that supports STEP import/export, fillets and chamfers. It has 2,126 GitHub stars and is released under the GPL-3.0 license.

github.com/dune3d/dune3d (opens in a new tab)

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About Dune3d

Dune 3D is a parametric 3D CAD application that supports STEP import/export, fillets and chamfers. So why another open-source 3D CAD application when FreeCAD and Solvespace exist? My primary use case for 3D CAD is designing 3D-printed enclosures for my electronics projects. I often found myself procrastinating designing the enclosure and attributed that to my dissatisfaction with the available open source 3D CAD applications.

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FAQ

Dune3d FAQ

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Is Dune3d free and open source?

Yes. Dune3d's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Dune3d?

Download the installer for Windows and macOS from its GitHub Releases page (latest: v1.4.0) or the project website.

Is Dune3d still maintained?

The repository's most recent commit was on Oct 17, 2026. appsgit only lists apps whose repository had a commit in the last six months.