Open-source Microsoft Teams alternatives
5 self-hostable options to consider
Replace Microsoft Teams with an open-source tool you can host and control. Compare features, licenses, and community activity below.
Quick answer
The best open-source Microsoft Teams alternatives are Rocket.Chat, Mattermost, Jitsi Meet, Element, and Chatto. All 5 are free, open source, and self-hostable — compare their features, licenses, and GitHub activity below.
5 tools
Rocket.Chat
Alternative to Slack, Microsoft Teams
A customizable communications platform.
Open SourceMIT42K
Mattermost
Alternative to Slack, Microsoft Teams
Secure team messaging for technical teams.
Open SourceSource Available33K
Jitsi Meet
Alternative to Zoom, Microsoft Teams
Free, encrypted video meetings with no account.
Open SourceApache 2.024K
