OrcaSlicer provides open-source 3D printing slicing for Windows, macOS, and Linux, with calibration and support tools.
Open source
16 alternativesFreeCAD
FreeCAD provides open-source parametric 3D modeling, with downloads and project information available from its official site.
About FreeCAD
FreeCAD is an open-source parametric 3D modeler for designing real-life objects. It allows editing a design by changing parameters in model history, sketching constrained 2D shapes to build 3D objects, and extracting dimensions and details from 3D models to make production drawings.
It runs on Windows, Mac and Linux and reads and writes open formats including STEP, IGES, STL, SVG, DXF, OBJ, IFC and DAE. It includes workbenches for finite element analysis, BIM, Geodata and CAM/CNC, experimental CFD, and a module for studying robot movements.
Key features
- Edit designs by changing parameters in model history
- Sketch constrained 2D shapes as base for 3D objects
- Create production drawings from 3D models with dimensions
- Read and write STEP, IGES, STL, DXF, OBJ, IFC
- Finite Element Analysis tools and experimental CFD
- BIM, Geodata and CAM/CNC workbenches with robot simulation
Best for: Hobbyists, students, teachers, programmers and CAD users doing product design, mechanical engineering, architecture, prototyping or 3D printing.
Good for
- Open-source with no licensing fees or vendor lock-in stated
- Runs on Windows, Mac and Linux
- Reads and writes many open file formats
Watch out for
- CFD functionality is described as experimental
FreeCAD at a glance
- Website
- freecad.org
- Category
- Design & Creative › 3D, CAD & Motion
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
FreeCAD alternatives
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FreeCAD FAQ
Which operating systems run FreeCAD?
Windows, Mac and Linux.
Which file formats can FreeCAD read and write?
Open formats such as STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE and others.
Is sign-up required to use FreeCAD?
The site states no sign-up, no paywall and no restrictions.
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Tell us and an editor will check it.
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