Online Community

Online Chat

Use the web-based chat platform powered by Mattermost or join with IRC on and join "#opennms"

Go to Mattermost

Discussion Board

Contact OpenNMS users in our community powered by Discourse.

Go to Discourse


Software Management

The OpenNMS project uses Atlassian's JIRA project management platform. We thank Atlassian for providing a no-cost license to the project.

Go to Jira

Source Repository

The source code is managed by git and is hosted on GitHub. We also use a pull request driven approach to submit patches for bug fixes or enhancements.

Fork me on Github

Continuous Integration

The OpenNMS project is covered by a large test suite. For running test suites and build packages for deployment, we use CircleCI.

Go to CircleCI

Meet Up


DevJam is a one week OpenNMS hack-a-thon with people from all over the world held annually.
*Virtual until further notice*


OpenNMS Users Conference

Meet up with other OpenNMS users and share your experience at our annual user conference in Europe.
*On hiatus*


Host a Local Meetup!

Find your own friends. Feel free to host a meetup of your own. Post it to the OpenNMS Discourse and tag @opennms on social media.

Start a Discourse topic