Skip to content
A CAD program for creating virtual LEGO models
C++ C Other
Branch: master
Clone or download


About LeoCAD

LeoCAD is a CAD program for creating virtual LEGO models. It's available
for free under the GNU Public License v2 and works on the Windows, Linux
and macOS Operating Systems.


You can download the latest version of LeoCAD and its Parts Library from
the main website at

It's recommended that you install the latest drivers for your video card
since LeoCAD uses OpenGL to take advantage of hardware acceleration for

- LeoCAD for Windows:

  Download LeoCAD-Windows-19.07.exe to your computer, double click on the
  icon to launch the installer and follow the intructions.

- LeoCAD for Linux:

  Download LeoCAD-Linux-19.07-x86_64.AppImage, make the file executable
  (chmod +x) and run it.

  If you prefer to compile LeoCAD yourself, go to the GitHub releases page
  at and download the 
  source archive from there. If you do not already have a Parts Library
  installed, you will need to download one and follow the installation
  instructions. More information on how to compile your own executable is
  available in the Documentation section of

- LeoCAD for Mac OSX:

  Download LeoCAD-macOS-19.07.dmg to your computer, double click on the
  icon to open the archive and copy to your Applications folder.

New users should read the online tutorial located at to learn how to use LeoCAD.

Online Resources

- Website:

- GitHub page:

Legal Disclaimer

LEGO(R) is a trademark of the LEGO Group of companies which does not sponsor,
authorize or endorse this software.
You can’t perform that action at this time.