Contact Information

Email discussion group

There is an active "Yahoo Groups" user community called JMRI users.

This discussion group is for people using the JMRI model railroad software.
It is a good place to discuss any aspect of these. If you have questions about how to do things, suggestions, or even complaints, post them here.

In addition to the above user community, there are several developer focused mailing lists hosted on that you may find useful:

All of the JMRI code is maintained on GitHub. See the: