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Best free team communication tools

Free team communication tools compared. Find the best free option based on features and limitations.

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1
Slack Free tier

Team messaging platform with channels, threads, and integrations for workplace communication.

Free for small teams, 90-day history · Paid from $7.25/user/mo Teams that need organized, searchable communication
Channels Threads Integrations File Sharing
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2
Microsoft Teams Free tier

All-in-one communication platform with chat, video meetings, and Office 365 integration.

Free basic chat and video meetings · Paid from $4/user/mo Organizations already using Microsoft 365
Video Meetings Office 365 Integration Channels File Sharing
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3
Discord Free

Voice, video, and text communication platform originally built for gaming, now used by communities and teams.

Free Communities, startups, and teams that want free voice + text
Voice Channels Screen Sharing Bots Community Servers
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4
Mattermost Free Open Source

Open-source, self-hosted team messaging platform for organizations that need data sovereignty.

Free (self-hosted) Teams that need self-hosted, privacy-first messaging
Self-Hosted Channels Playbooks Compliance
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5
Rocket.Chat Free Open Source

Open-source communication platform with team chat, video, and omnichannel customer engagement.

Free (self-hosted) Teams that want self-hosted chat with customer-facing features
Self-Hosted Omnichannel Federation Video Calls
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6
Element Free Open Source

Decentralized, end-to-end encrypted messaging built on the Matrix protocol.

Free Privacy-focused teams and cross-organization communication
End-to-End Encryption Matrix Protocol Bridges Self-Hosted
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7
Lark Free tier

Integrated workspace combining messaging, video, docs, and project management from ByteDance.

Free for up to 50 users · Free Teams wanting an all-in-one collaboration suite
Messenger Video Docs Calendar
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8
Twist Free tier

Async communication tool from Doist that organizes conversations into threads, not a firehose.

Free for 1 month history · Paid from $6/user/mo Remote teams wanting async-first communication
Threads Async-First Channels Integrations
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9
Pumble Free

Free team messaging app with unlimited message history, channels, and 1-on-1 video calls.

Free Teams wanting a free Slack alternative
Unlimited History Channels Video Calls Threads
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10
Chanty Free tier

Simple team messaging with tasks, video calls, and unlimited message history on the free plan.

Free for up to 5 members · Free Small teams wanting simple, affordable team chat
Unlimited History Tasks Video Calls Threads
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11
Flock Free tier

Team messaging with built-in to-dos, polls, notes, and file sharing.

Free for up to 20 users · Free Teams wanting messaging with built-in productivity tools
To-Dos Polls Notes Video Calls
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12
Zulip Free Open Source

Open-source team chat with a unique topic-based threading model for organized conversations.

Free Open-source communities and teams wanting threaded messaging
Topic Threading Open Source Self-Hosted Markdown
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More team communication lists

All Team Communication tools
15 tools compared
Open source Team Communication tools
4 tools

Comparisons

Slack vs Microsoft Teams
Slack vs Microsoft Teams
Compare Slack and Microsoft Teams side by side. Features, pricing, and which one fits your team.
Slack vs Discord
Slack vs Discord
Compare Slack and Discord side by side. Features, pricing, and which one fits your team.
Slack vs
Slack vs Mattermost
Mattermost is the free option; Slack charges $7.25/user/mo but may offer more polish. Here is how they compare.
Slack vs Rocket.Chat
Slack vs Rocket.Chat
Rocket.Chat is the free option; Slack charges $7.25/user/mo but may offer more polish. Here is how they compare.
Slack vs Element
Slack vs Element
Element is the free option; Slack charges $7.25/user/mo but may offer more polish. Here is how they compare.
Slack vs Google Chat
Slack vs Google Chat
Slack is built for teams that need organized, searchable communication. Google Chat is built for teams already using google workspace. Pick the one that fits.

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