01/ FreeCAD
Best for: Parametric part and assembly design.
Imports STEP and IGES files from other CAD tools.
Runs on: Windows, macOS, Linux
Visit FreeCADEngineering & CAD · 3D mechanical CAD
Free alternatives to SolidWorks
SolidWorks by Dassault Systèmes: Parametric 3D design for mechanical engineering and products. Pricing: licence or subscription. Here are 2 free options that cover the same job.
| Alternative | Type | Platforms | Best for | |
|---|---|---|---|---|
FreeCADImports STEP and IGES files from other CAD tools. | Open source | Windows, macOS, Linux | Parametric part and assembly design | Get it |
 Onshape (Free plan)Documents on the free plan are public. | Free plan | Web, iOS, Android | Browser-based CAD for hobby and open projects | Get it |
 SolidWorksThe paid original | Licence or subscription | – | 3D mechanical CAD | Visit |
The alternatives in detail
Open source
02/ Onshape (Free plan)
Best for: Browser-based CAD for hobby and open projects.
Documents on the free plan are public.
Runs on: Web, iOS, Android
Visit Onshape (Free plan)Frequently asked questions
Is there a free alternative to SolidWorks?
Yes. FreeCAD is a strong free option for parametric part and assembly design. Other choices include Onshape (Free plan).
Which SolidWorks alternative is open source?
FreeCAD is open source.