Blender
Mesh & visualisationFree and open-source 3D creation suite
- Stars
- ★ 21k
- Licence
- GPL-2.0+
- Updated
- Commercial OK
- STL

Free interior design and floor-plan app with 3D preview
From SourceForge, fetched 19 Oct 2026.
Sweet Home 3D lets you draw floor plans, place furniture and see the result in 3D. It is good for home layouts and simple architectural visualisation, rather than full BIM.
| Runs on | Windows, macOS, Linux |
|---|---|
| Commercial use | Allowed Open-source licence (GPL-2.0): the Open Source Definition rules out restrictions on fields of use, including business use. |
Sources: opensource.org/osd. “Runs on” is from this listing. Blank means we haven't found it in official docs yet, not that it's unsupported.