💡 Pick it for a mature, lightweight federated protocol with many self-hosted server and client options.
Extensible Messaging and Presence Protocol (XMPP) is a communication protocol for message-oriented middleware based on XML.
Open Source
Best Matrix.org Alternatives ranked by AI · updated Aug 2026
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Matrix is an open, decentralized protocol for real-time messaging, voice, video, and collaboration. It is used by communities, organizations, and developers that need interoperable communication across independently hosted servers.
Top 6 Matrix.org alternatives
💡 Pick it for structured, self-hosted team collaboration with stronger workflow and compliance tooling.
Mattermost is an open-source, self-hosted Slack alternative. It provides team collaboration and messaging tools for modern enterprises.
Free for the basic version, paid plans for enterprise features
💡 Pick it for an integrated self-hosted workspace with omnichannel messaging and business integrations.
Rocket.Chat is an open-source team communication platform that offers real-time chat, video conferencing, file sharing, and more.
Free, with paid plans available for additional features and support
💡 Pick it when private, encrypted person-to-person messaging matters more than federation or community-scale collaboration.
Signal is a secure and private messaging app known for its end-to-end encryption and focus on user privacy.
💡 Pick it for a polished hosted workplace with deep integrations and minimal server administration.
Slack is a collaboration hub that connects your team with the apps, services, and resources they need to get work done.
Starting from $6.67 per user per month
💡 Pick it for easy-to-join community servers with strong voice chat and a familiar social experience.
Discord is a popular communication platform that offers text, voice, and video chat for gamers and communities.
Free with optional paid plans
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