HELM is primarily a notation, however some applications have been built using the notation and are available as open source software released under the permissive MIT licence.
As an open source project we have limited resources, so the documentation is not as extensive as commercial software, but this site is designed to let you see what we have. We are always interested in hearing from individuals and groups interested in HELM, so please get in touch via info@OpenHELM.org.
