ExaStencils is an open source framework and released under the GPLv3 license. You can either directly download the source code as an archive of your choice using the dropdown menu or visit the GitLab website of the release repository and download the sources there.
EvoStencils is also open source and released under the GPLv3 license. You can download the sources from GitHub or use the download button.
Currently, the open-sourcing for GHODDESS is still in preparation. However, you can still contact us to request the sources.