The JMRI project is building tools for model railroad computer control. We want it to be usable to as many people as possible, so we're building it in Java to run anywhere, and we're trying to make it …

This will install JMRI to the default location, place shortcuts for DecoderPro and PanelPro on the desktop and create a JMRI Start Menu folder containing shortcuts for typically used JMRI programs.

JMRI 5.15.4 is the next release of the current development series, containing the latest and greatest JMRI updates. The series is working toward the JMRI 5.16 production release, probably in June …

This page lists hardware and networks that JMRI is known to work with, and provides links to information on how to configure JMRI to work with each particular type.

The JMRI libraries contain the PanelPro application for creating panels to control or follow your (virtual) model railroad. This page introduces the application, and how to use it.

JMRI needs a "Java Runtime Environment" (JRE) to run but will work fine with the larger "Java Development Kit" (JDK). A JDK is only needed if you want to work on JMRI development, i.e. make …

Detailed step by step JMRI Operations How-To Instructions are available on the JMRI.org site. There's also OperationsPro Wiki that contains some useful information and insight into how the program works.

JMRI is intended as a jumping-off point for hobbyists who want to control their layouts from a computer without having to create an entire system from scratch.

If JMRI lacks a preprogrammed tool to do what you want, you can write a Script that does exactly what's needed, including user interaction. Instead of defining our own language, JMRI Scripting uses the …

The JMRI project has compiled a lot of information about decoders from many manufacturers, which we make freely available in several forms. To learn more, see the Decoder Information page.