FreeCAD
Free, open-source parametric 3D CAD modeler with a dedicated BIM Workbench that reads and writes IFC, STEP, and DXF; scriptable via Python; suitable for budget-constrained solo architects who need IFC interoperability without a subscription.
3.4 /5 composite score
C2 3/5 reflects CLI plus the Python API, C4 5/5 reflects FCStd, STEP, IGES, IFC, STL, DXF, OBJ, DAE, and SVG exchange, and C5 4/5 reflects Revit via IFC and BricsCAD via DWG/DXF interoperability. RF4 and C3 2/5 reflect the steeper community-supported adoption path, and firm-size fit is solo.
Solid
Rubric Scorecard
| Criterion | Score | Evidence |
|---|---|---|
| Value for the price | 3/5 | Free, from $0, free tier Source → |
| Agent Friendliness | 3/5 | CLI, API: Python API (FreeCAD module, full document and geometry access) |
| Ease of adoption | 2/5 | steep learning curve |
| Portability & lock-in | 5/5 | 9 file formats |
| Interoperability | 4/5 | 2 integrations |
Pricing
ModelFree
Entry price$0
Free tieryes
Free vieweryes
Trialno
How we verified this: we checked FreeCAD against its live site and an independent source — capterra.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-18.
Evidence
File formats
| Format | Direction | Support |
|---|---|---|
| FCStd | unknown | unknown |
| STEP | unknown | unknown |
| IGES | unknown | unknown |
| IFC | unknown | unknown |
| STL | unknown | unknown |
| DXF | unknown | unknown |
| OBJ | unknown | unknown |
| DAE | unknown | unknown |
| SVG | unknown | unknown |
Integrations
Revit (via IFC) BricsCAD (via DWG/DXF)
Adoption
Learning curvesteep
Sources
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