FreeCAD

Truly free

Open-source parametric 3D modeler

Free tier & pricing

Fully free and open source with no sign-up or paywall; includes a dedicated BIM/architecture workbench plus general 3D parametric modeling.

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Last verified Jun 23, 2026. Report a change →

FreeCAD interface — truly free desktop home design software

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The short answer

FreeCAD is a free, open-source parametric 3D CAD modeler with a BIM workbench for architectural work. Reads and writes STEP, IGES, DXF, IFC, OBJ.

The facts

Pricing: Free · Truly free
Free tier: Yes
Runs in browser: No
Platforms: Windows, macOS, Linux
2D / 3D: Basic 3D
Learning curve: Moderate
Export formats: DXF, OBJ, STL

The catch

No major catches — this one’s refreshingly straightforward.

Best for

Hobbyists and engineers wanting free parametric CAD/BIM

Head-to-head comparisons

FreeCAD: questions, answered

Is FreeCAD free?

Yes. FreeCAD is genuinely free to use. Fully free and open source with no sign-up or paywall; includes a dedicated BIM/architecture workbench plus general 3D parametric modeling.

What platforms does FreeCAD run on?

FreeCAD is available on Windows, macOS, Linux. It is a desktop install with no browser version.

What file formats can you export from FreeCAD?

FreeCAD exports to DXF, OBJ, STL. That includes CAD formats, so you can hand files to a contractor or open them in AutoCAD.

Does FreeCAD do 3D and photorealistic renders?

FreeCAD supports 3D with basic 3d render quality. For fully photorealistic output you may want a heavier tool.

Is FreeCAD easy to learn?

Moderate to pick up. Hobbyists and engineers wanting free parametric CAD/BIM