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Team Communication tools

Persistent workplace messaging and team communication tools.

ZZulip favicon

Zulip

25,717

Team Communication

Zulip is an open-source team chat application that organizes live and asynchronous conversations into topic-based threads for focused collaboration.
KKanboard favicon

Kanboard

9,797

Team Communication

Kanboard is self-hostable project management software centered on Kanban boards, helping teams organize and track work through visual project workflows.
KKaneo favicon

Kaneo

8,318

Team Communication

Kaneo is an open-source, self-hosted project management platform for organizing tasks, issues, projects, and labels in a focused team workspace.
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Vikunja

5,069

Team Communication

Vikunja is a self-hostable task and project management platform for organizing work, with hosted and locally deployable options for individuals and teams.
TTasks.md favicon

Tasks.md

2,180

Team Communication

Tasks.md is a self-hosted task board that stores cards as Markdown files, organizing work into customizable lanes and tags through a responsive web interface.
PPaca favicon

Paca

1,723

Team Communication

Paca is a self-hosted project management platform where humans and AI agents plan, execute, and review work together on configurable Scrum boards.
RRaven favicon

Raven

750

Team Communication

Raven is an open-source team messaging platform for channels, direct messages, file sharing, threaded discussions, and Frappe-based business integrations.
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4gaBoards

689

Team Communication

4ga Boards is a self-hostable web platform for realtime kanban project management, organizing projects, boards, lists, cards, and tasks with team collaboration.
SScrumboy favicon

Scrumboy

429

Team Communication

Scrumboy is a self-hosted project management app with Kanban boards, issue tracking, sprints, workflows, collaboration, voice commands, and automation.

How to choose open-source Team Communication software

Start with the workflow you need to replace, then compare feature coverage, deployment documentation, project activity, data portability, and support. Repository popularity is useful context, but it should not outweigh fit or the project's maintenance history.

Capabilities and use cases

Across the reviewed tools, common documented capabilities include To-do lists and assignments, Project delivery workspaces, Card Tables, Project organization, Boards and workflow views, Configurable project delivery boards, Engineering issue tracking, Natural-language task lists from capture to completion. Verify the exact workflow on each profile before migrating production data.

Licensing considerations

Licenses represented in this category include AGPL-3.0, Apache-2.0, MIT. Check redistribution, modification, and hosted-service obligations against your intended use.

Self-hosting tradeoffs

9 of 9 reviewed tools are confirmed as self-hostable, and 9 document Docker support. Compare upgrade, backup, monitoring, and security work alongside hosting cost.