FreeCAD is free cad software. No cost, no pay to use licenses. Just download the free cad software, install & use. Its that simple.

FreeCAD is Your own 3D parametric modeler, 2D designer and overall tool when it comes to CAD.

Freedom to build what you want

FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters.

Create 3D from 2D & back

FreeCAD allows you to sketch geometry constrained 2D shapes and use them as a base to build other objects. It contains many components to adjust dimensions or extract design details from 3D models to create high quality production ready drawings.

Accessible, flexible & integrated

FreeCAD is a multiplatfom (Windows, Mac and Linux), highly customizable and extensible software. It reads and writes to many open file formats such as STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE and many others, making it possible to seamlessly integrate it into your workflow.

Designed for your needs

FreeCAD is designed to fit a wide range of uses including product design, mechanical engineering and architecture. Whether you are a hobbyist, a programmer, an experienced CAD user, a student or a teacher, you will feel right at home with FreeCAD.

And many more great features

FreeCAD equips you with all the right tools for your needs. You get modern Finite Element Analysis (FEA) tools, experimental CFD, BIM, Geodata workbenches, Path workbench, a robot simulation module that allows you to study robot movements and many more features. FreeCAD really is a Swiss Army knife of general-purpose engineering toolkits.

FreeCAD is a truly open source project and if you would like to help fix bugs, implement new cool features or work on the documentation, we invite you to join us and create a software that benefits the whole community. The official site is https://freecadweb.org/

From FreeCAD (2020) some frequently asked questions -

What is the easiest way to install FreeCAD on my system?

If you are on Windows or Mac OS, the simplest way is to head to the Download page, where you'll find several ready-to-install packages. If you are on Debian, Fedora or Ubuntu and some other distributions, FreeCAD is already included in the standard software repositories and you can simply install it with the software manager. On Ubuntu, the FreeCAD team also maintains its own PPA repositories. For further details about installation, refer to the Installing page.

What are the prerequisites for running FreeCAD?

In contrast to most 3D CAD software, FreeCAD can run smoothly on the most modest computers - it's been known to run on Pentium IV and Intel Core2 Solo CPUs. If your computer is running a current operating system, chances are FreeCAD will run. The only prerequisite is that your graphics card or chipset must support OpenGL, preferably no older than v2.0. In case of problems, refer to the Troubleshooting section of this FAQ.

Is FreeCAD really free? Even for commercial use?

FreeCAD is open-source software, and is free not only to use, for yourself or for doing commercial work, but also to distribute, modify, or even use in a closed-source application. To summarize, you are free to do (almost) anything you want with it. See the Licence page for more details.

What can I do with FreeCAD? Where do I start?

Head to the Getting started page for a quick description of the tools you can use. There is also a new Tutorials section containing a few resources. The User hub section contains more detailed information about the different workbenches of FreeCAD. Note that since FreeCAD is relatively new, its user interface is still very bare and doesn't feature many tools. But much more advanced functionality is already available to you from python scripting.

Do I have to pay something to use FreeCAD?

No. FreeCAD is totally free to use, to download, to redistribute, or to modify. It is open-source software, published under the terms of the GNU Lesser General Public License 2.1, which guarantees you those freedoms and, even more important, guarantees you that these freedoms will never be taken from you.

Can I reuse any part of the FreeCAD artwork or pieces of the website?

Sure. All the artwork (icons, banners, etc.) of FreeCAD are licensed LGPL, same as the FreeCAD code. Help yourself on the Artwork page. The website is a standard MediaWiki site, all graphic elements can freely be reused, and if you are curious about how to tweak the MediaWiki software like we did, look for the special Common css and js pages.