Open Source Alternatives to Yammer

A community building platform that creates spaces for conversations, company news, and shared interests within an organization. It provides tools for employee communications and communities, allowing users to engage in discussions and access company announcements. The product is designed for workforce engagement and is deployed as part of the Microsoft 365 ecosystem, often integrating with Microsoft Teams. It serves enterprise and frontline plan users to foster internal networking and knowledge sharing. The platform includes features for managing campaigns, assigning roles such as owner or editor, and tracking engagement metrics. It is used to energize the workforce by centralizing internal communication and providing a branded destination for organizational news. Access to premium features requires specific licensing within the Microsoft Viva suite.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Yammer give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Yammer. The most popular is HumHub. It uses the AGPL-3.0 license.