FreeCAD
3D & parametric CADOpen-source parametric 3D modeller for real-life objects
- Stars
- 34k
- Licence
- LGPL-2.1+
- Status
- Open source
Alternative to SolidWorks, Fusion 360
Free alternatives to CATIA
Dassault Systèmes' high-end CAD platform used in aerospace and automotive. Here are 2 free options, most popular first.
BRL-CAD
3D & parametric CADConstructive solid geometry modelling system with decades of history
- Licence
- LGPL-2.1
- Status
- Open source
Alternative to CATIA
Check file compatibility before switching. Free tools import STEP, DXF and other neutral formats well, but native SolidWorks, Altium or Revit files, drawing standards and PDM workflows may not carry over cleanly.