Installing additional components

Choose Your Operating System
FreeCAD is a truly multi-platform application, developed with the world-renowned Qt framework. This means FreeCAD looks and acts the same on Windows, Linux and Mac. However, the installation procedure is a little different for each operating system. Choose your operating system for details on installing FreeCAD.

Help files
The offline documentation is not shipped with all installers, but it is available as a separate package; see Installing a helpfile.

External workbenches
Apart from the default workbenches bundled with FreeCAD, there is a collection of useful External workbenches made by community members.

External software supported by FreeCAD
FreeCAD supports a whole lot of external software packages out of the box. This means, you just need to install the software and it will be automatically available, the next time you start it. There's no need to recompile it. This section aims to provide a list of all such software packages, together with some information of where it's used in FreeCAD and where you can grab them.

GraphViz
GraphViz is an open source graph visualization software. In FreeCAD it is used to generate dependency graphs through. Its homepage is at https://www.graphviz.org

OpenCAMLib
OpenCAMLib is an open source library of computer aided manufacturing (CAM) algorithms and used in the Path Workbench. See its page for installation instructions.

OpenSCAD
OpenSCAD is solid 3D modeller based on the constructive solid geometry (CSG) paradigm, where the model is created through a script. It can not handle meshes, but operates exclusively on solid geometry. FreeCAD can import and export files created from OpenSCAD through the Std Import and Std Export tools by the selecting the or the  file types. You can get OpenSCAD from https://www.openscad.org.

GitPython
GitPython is a library to interact with Git repositories. The Addon Manager can use this library to import addons from a Git repository. The project is hosted on GitHub at https://github.com/gitpython-developers/GitPython.

CalculiX
CalculiX is a suite of two finite element packages:
 * CalculiX CrunchiX, or, is a FEM solver.
 * CalculiX GraphiX, or, is a GUI frontend to display the results of the solver.

Only the solver is supported by FreeCAD. It can be accessed from the FEM Workbench through. There's a standard and experimental solver supported by FreeCAD. CalculiX can be downloaded from http://calculix.de

Gmsh
Gmsh is an automatic finite element mesh generator. It can be used in FreeCAD from the FEM workbench through. The homepage of Gmsh is at http://www.geuz.org/gmsh

Elmer
Elmer is a multi-physics simulation software, which was open sourced in 2005. In FreeCAD its Grid and Solver modules can be used by the FEM Workbench through. The project's homepage is at https://www.elmerfem.org and it can be downloaded from GitHub at https://github.com/ElmerCSC/elmerfem/releases.

FEniCS
FEniCS is a computing platform to solve partial differential equations (PDEs), which are widely used when solving FEM problems. As such it can be used by the FEM workbench. FreeCAD can import and export FEniCS meshes through Std Import and Std Export by selecting the file format. The homepage of FEniCS is at https://fenicsproject.org.

Z88
Z88 is another FEM program, containing a mesher, solver and converters, which can be used by FreeCAD's FEM workbench. It can be accessed through. Z88 distributes several packages, which all freely available, but are closed source. The Z88OS however, published under an open source license, is what is needed by FreeCAD. The homepage is at https://en.z88.de/. Z88OS is also hosted on GitHub at https://github.com/LSCAD/Z88OS, if you want to compile it yourself.

OpenFOAM
OpenFOAM is a large collection of libraries for computational fluid dynamics (CFD) simulations. OpenFOAM can be used by external workbenches that build on top of FreeCAD to work as a preprocessor. The project resides at https://openfoam.org.

CAD Exchanger
A proprietary, closed source application for exchanging various file formats used in CAD. You can use it to convert proprietary, closed formats into a format which is accessible by FreeCAD. The homepage is at https://cadexchanger.com/ where you can download an evaluation version or purchase a license for the application.

DXF Importer
FreeCAD has a native importer and exporter for DXF files, programmed in C++. Currently this importer does not implement all features of the DXF format. If you rely on a not yet implemented feature, you enable an older python based importer/exporter through by activating the  option. You can then choose to let FreeCAD automatically download the needed files or you can grab them from https://github.com/yorikvanhavre/Draft-dxf-importer. The chosen importer and exporter is used by Std Import and Std Export and choosing the file format.

ODA File Converter
The ODA file converter is a proprietary, closed source, binary and freely available application to import and export DWG and DXF file formats. In FreeCAD it can be used by Std Import and Std Export when you select the file type. It can be downloaded from https://www.opendesign.com/guestfiles/oda_file_converter.

ifcOpenShell
IfcOpenShell is a library for working with the Industry Foundation Classes (IFC) file format used in architectural design. It can be accessed from the Arch Workbench through. It's homepage is at http://ifcopenshell.org.

pycollada
Pycollada, also known as, is a Python library to read and write COLLADA documents, a standard for exchanging 3D scenes and elements. If it is installed you can import and export scenes to and from COLLADA files through Std Import and Std Export by selecting the COLLADA file type. The project is hosted in GitHub at https://pycollada.github.io/ and you can download the releases at https://github.com/pycollada/pycollada/releases/.

POVRay
POVRay is a well-known raytracer which can render photorealistic images. It is one of two raytracers currently supported by FreeCAD in the Raytracing Workbench. You can download POVRay from https://www.povray.org.

LuxCoreRender
LuxCoreRender, also known as LuxRender, is one of two currently supported render engines in FreeCAD. It is used through the workflow on the Raytracing Workbench. Currently only the old and abandoned LuxRender-1.x is supported by FreeCAD. Downloads for LuxRender-1.6 can be grabbed from the LuxCoreRender GitHub release page at https://github.com/LuxCoreRender/LuxCore/releases. The homepage for the current LuxCoreRender project is at https://www.luxcorerender.org.

Related Pages

 * Third Party Libraries