Free team communication tools for 2026
What 'free' really means for team chat: free tiers, free self-hosted software and the limits to check before you rely on them.
The short answer
Free team communication tools come in two kinds. Free tiers of hosted products are free to start but cap history, features or team size, and push you to a paid plan as you grow. Free self-hosted software has no seat fee, but you pay for a server and your own time to run it.
Neither is better in every case. Free tiers suit very small teams that need to start today. Self-hosted suits teams that expect to grow and want a flat cost.
Free options by type
| Type | Examples | The catch |
|---|---|---|
| Free tier of a hosted suite | Slack, Teams, Lark, Google Chat, Zoom and others offer free plans | Limits on history, features, users or meeting length; check each vendor's page |
| Free open-source self-hosted | Mattermost, Rocket.Chat, Zulip, Element | You run the server; some features need paid editions |
| Free self-hosted workspace | Dock | You run the server; younger product |
Check before you rely on a free plan
Message history
Is old chat searchable or hidden?
Meeting limits
Length and participants.
Integrations
How many apps can you connect?
Exit
Can you export everything if you move?
What makes Dock different: it connects to your tools
Dock connects the places your team already works. Notion: connect your Notion pages, then type @notionpage_ in any chat to tag a page; everyone gets a preview card and your AI agents can read it. GitHub: link GitHub read-only, pin repositories to a chat, tag them with @github_ and ask the AI about them. Claude and Codex: use your own Claude or Codex plan inside Dock chats, or connect any MCP agent to your workspace with a token.
All of this sits next to chat, video meetings (with recording, transcripts and AI summaries), docs, tables, calendar, tasks and a drive, in a self-hosted app with no per-seat licence. You run the server yourself, and some integrations are young, so check the setup guides for what each one covers.
Questions
Is there a completely free team chat tool?
Self-hosted tools have no seat fee, but you pay for a server. Hosted free tiers are free until you hit a limit.
Is Dock free?
Dock is free to self-host with no per-seat licence; you pay for your own server. See the pricing page for plans.
Which free tool is best for 5 people?
Any of the above can work. Pick by what you need besides chat.