Open Source Alternatives to Microsoft Teams
A collaboration and communication platform that enables chat, video meetings, file sharing, and integrated Office app access across teams and organizations globally.
Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Microsoft Teams give you an option you fully own. Run them on your own server or desktop, so your data stays under your control. This page lists 19 open source alternatives to Microsoft Teams. The most popular are Rocket.Chat, Mattermost and Jitsi. Most use the AGPL-3.0 or Apache-2.0 license, and 17 offer an official Docker image.
Rocket.Chat
A secure communication platform providing real-time messaging, voice, and video for organizations requiring full data control.
Mattermost
A self-hosted collaboration platform providing team chat, workflow automation, voice calling, and screen sharing for secure organizations.
Jitsi
Host encrypted video conferences via a web browser or mobile app using a self-hosted server deployment.
Zulip
An organized team chat application using topic based threading to support both live and asynchronous communication.
Element
A communication client for encrypted messaging and collaboration built on the decentralized Matrix protocol.
Screego
A self-hosted screen sharing tool designed to provide high resolution and low latency communication.
BigBlueButton
A virtual classroom system for real-time audio, video, and collaborative tools designed for online learning.
Flat
A virtual classroom client providing real-time video, audio, and interactive whiteboard capabilities for online education.
Teams for Linux
An unofficial desktop wrapper for Microsoft Teams that provides native system integration for Linux users.
MiroTalk P2P
Self-hosted video conferencing platform using peer-to-peer WebRTC connections for secure real-time communication and collaboration.
Synapse
A homeserver implementation for the Matrix open standard for secure and interoperable real-time communications.
Campfire
A self-hosted group chat system featuring multiple rooms, direct messaging, file attachments, and bot integration via API.
Converse
A client side XMPP chat application that runs in web browsers or as a desktop app.
MiroTalk SFU
Self-hosted video conferencing platform for real-time communication and collaboration using a scalable SFU architecture.
Openfire
A real time collaboration server using the XMPP open protocol for instant messaging and communication.
Stoat
A self-hosted communication platform featuring a back-end, web front-end, file server, and image proxy.
Mattermost
Provides a native desktop interface for secure team collaboration and communication across Windows, Mac, and Linux.
MongooseIM
An XMPP server designed for large installations that supports clustering and multiple client connection methods.
Plug-N-Meet
A self-hosted web conferencing system with AI meeting intelligence and scalable WebRTC infrastructure for any website.
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