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FreeCAD vs DesignSpark Mechanical: catalog facts
FreeCAD	DesignSpark Mechanical
Free Free and open source, funded by donations and sponsorship.	Freemium A free Explorer plan is available, with paid Creator and Engineer plans adding more tools.
Windows, macOS, Linux	Windows
Parametric: change a dimension and the model updates through its history Sketch constrained 2D geometry and build 3D objects on top of it	Push-pull direct modelling that suits non-specialists Imports and exports STEP, IGES, STL and DXF
Workbenches vary a lot in polish and consistency CAD concepts plus FreeCAD’s own conventions make for a long learning curve	Assembly tools require the paid Engineer plan Some import and export features depend on the plan
Downloadable app	Downloadable app
Open source	Closed source
License: LGPL-2.1	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.