JMRI® is...
A great tool for programming decoders, simplifying the job of configuring DCC decoders from your computer
Design and Operate control panels that reflect the real-time state of your railroad and let you control it
A system for Dispatching, grouping your Roster and Throttles
Build Trains from your Roster and print Train Manifests that detail the work your train crews will perform
A set of tools for using Audio with JMRI
Cool Uses
People have used JMRI to do some great things for the model railroad community.
Our Gallery page highlights some of these.
Also, there are many apps with JMRI connections.
JMRI tools for working with your layout:
Layout Automation
Use JMRI to automate parts of your layout and operations:
Supported Hardware
Devices, command stations, networks, and protocols:
JMRI Setup and Installation
JMRI environments...

JMRI Help:

Contents Index
Glossary FAQ

Donate to

Donating to JMRI

JMRI runs entirely on volunteer labor. We have an impressive list of people who have worked on JMRI.

However, JMRI also needs contributions of money. We generally use open source and collaborative (i.e. no-cost-to-us) tools and infrastructure, but there are a few expenses related to JMRI software development that have to be paid for. These include, but not limited to:

  • Domain name registration fees,
  • SSL certificates and DNS costs,
  • copyright and trademark registration fees,
  • costs for signing certificates and other development items,
  • backup costs,
  • server and bandwidth fees for the Jenkins and web site services,
and other costs associated with keeping the JMRI code freely available and the developer and users communities connected.

Donations are greatly appreciated.

If possible, we prefer that you donate via PayPal. Just click on one of the buttons below, which will take you to a PayPal page for making a donation.

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If you don't want to use PayPal, please contact us directly via email. We can sometimes make other arrangements.