![](https://www.opennms.com/wp-content/uploads/sites/3/2017/07/meridian-screenshots-home-transparent.png)
OpenNMS is the world’s first fully open source enterprise-grade network service management platform, and hundreds of enterprises are using it every day without a lick of help from us. It’s that easy to work with. And as true open source, it’s 100% free.
Source: The OpenNMS Group, Inc.
OpenNMS: built for scalability, integration, and high levels of configuration since 2000.