Mattermost

Best Self Hosted Alternatives to Mattermost

A curated collection of the 1 best self hosted alternatives to Mattermost.

Mattermost (SaaS) is a secure team messaging and collaboration platform providing channels, direct messaging, file and screen sharing, searchable history, integrations and ChatOps, administrative controls, enterprise compliance and SSO, and high-availability/private cloud deployment options.

Alternatives List

#1
Libervia

Libervia

Libervia is a modular XMPP-based communication suite offering chat, microblogging, file sharing, and other social features across web, desktop, and CLI interfaces.

Libervia screenshot

Libervia is a modular communication and social platform built on the XMPP protocol. It provides a shared backend and multiple frontends (including a web interface) to deliver messaging and social features in a unified, extensible system.

Key Features

  • XMPP-based architecture leveraging the open, federated messaging ecosystem
  • Multiple user interfaces, including a web frontend (Libervia Web)
  • Real-time chat and contact management via XMPP
  • Social features often associated with "social networking" use cases (implemented through XMPP extensions)
  • Extensible, plugin-oriented design to add or customize features

Use Cases

  • Run a self-managed team chat and messaging service using XMPP
  • Provide a federated communication platform for communities or organizations
  • Build custom XMPP-powered apps by extending the backend and exposing tailored frontends

Limitations and Considerations

  • Feature availability can depend on XMPP server support and enabled XMPP extensions
  • A full deployment typically involves multiple components (backend, XMPP server, and chosen frontends)

Libervia is best suited for users who want an open-protocol communication stack with the flexibility of multiple interfaces. Its XMPP foundation and modular design make it a strong choice for extensible, federated messaging and social functionality.

Why choose an open source alternative?

  • Data ownership: Keep your data on your own servers
  • No vendor lock-in: Freedom to switch or modify at any time
  • Cost savings: Reduce or eliminate subscription fees
  • Transparency: Audit the code and know exactly what's running