Best open-source communication
Team chat, video conferencing, and community platforms you can self-host for privacy and control.
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
Zulip
Alternative to Slack, Discord
Threaded team chat that scales with focus.
Open SourceApache 2.022K
