CCADAlts

Dune 3D

Modern parametric 3D CAD built on SolveSpace's solver and OpenCascade

★ Stars2.1k2,114 on GitHub
Last commit17 Oct 2026
LicenceGPL-3.0SPDX, from the repository
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From GitHub, fetched 19 Oct 2026.

Visit dune3d.org ↗

Dune 3D is a newer open-source parametric 3D CAD application from the author of Horizon EDA. It combines SolveSpace's constraint solver with the OpenCascade geometry kernel, which gives it fillets, chamfers and STEP import and export.

Fit: files and licence

Runs onWindows, Linux, macOS
OpensSTEP
STEP models are imported for reference.
SavesSTEP, STL
Commercial useAllowed
Open-source licence (GPL-3.0): the Open Source Definition rules out restrictions on fields of use, including business use.

Sources: dune3d.org · opensource.org/osd, checked 19 Oct 2026. “Runs on” is from this listing. Blank means we haven't found it in official docs yet, not that it's unsupported.

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