Best open-source communication tools for desktop, enterprise

Open-source team chat, messaging and collaboration software.

Filters · 3 Enterprise, Communication, Desktop

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Personal7Enterprise4

Purpose

AI & LLM tooling5Chat UIs1Agents & frameworks3Local inference1RAG & vector DBs1Coding assistants2Agent skills0MCP servers0Developer tools16Web frameworks1Databases & backends3Editors & IDEs2API tools3Self-hosted apps3Notes & docs2Automation0Data & analytics0Infra & DevOps2Security & identity7Communication4Media & photos0Design & creative1

Runs on

Web6Docker / self-host15Desktop4Mobile1CLI0Library / SDK8Extension / plugin0

License

Permissive1Copyleft1Source-available0Other / custom2

More

Has live demo1Commit in last 90 days4

4 projects

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B

Buzz (Block)block/buzz

Hive mind communication platformPersonalEnterpriseCommunicationDesktop★ 35kApache-2.0commit yesterday

82worth

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E

Elementelement-hq/element-web

Secure messaging client for the Matrix networkPersonalEnterpriseCommunicationWebDesktop★ 14kAGPL-3.0commit yesterdaylive demo

81worth

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R

Rocket.ChatRocketChat/Rocket.Chat

Communications platform with full data controlEnterpriseCommunicationWebDocker / self-hostDesktopMobile★ 46kcommit 22 hours ago

79worth

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M

Mattermostmattermost/mattermost

Secure collaboration for technical teamsEnterpriseCommunicationWebDocker / self-hostDesktop★ 39kcommit yesterday

79worth

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