Microsoft Teams
AI
Chat, meetings, and Copilot AI in one hub
Chat, video, and Copilot AI bundled with Microsoft 365, the default enterprise Slack alternative.
Team channels/chat
Video meetings
Copilot AI summaries
Freemium · from $4/user/mo
Slack
Classic
Team chat and collaboration
4.4
Freemium · from $8.75/user/mo
Best for Teams that live in chatOverview
Slack is the default workplace messaging tool with channels, huddles and thousands of integrations. Busy workspaces quickly become hard to keep up with.
Key features
- Channels
- Huddles
- Workflow builder
- App integrations
Pros
- Ubiquitous
- Great integrations
- Fast search
Cons
- Message overload
- AI recaps cost extra
Slack screenshot
Captured from the official website
Slack replaces
AI alternatives to Slack
Discord
AI
Chat, voice, and communities for any group
Community and voice-first chat platform, a popular free Slack alternative for startups and communities.
Voice/video channels
Threads and forums
AI-powered summaries/moderation
Freemium · from Free
Google Chat
AI
Team messaging built into Google Workspace
Gemini-powered team chat bundled with Google Workspace, for teams already using Gmail/Docs.
Spaces/channels
Gemini AI summaries
Deep Google Workspace integration
Freemium · from $6/user/mo
Mattermost
AI
Secure, self-hosted team collaboration
Self-hostable, open-source Slack alternative for security-conscious and dev-focused teams.
Self-hosting option
Channels/threads
AI plugin support
Freemium · from $10/user/mo
Zoom Team Chat
AI
Team chat built into the Zoom platform
Chat bundled with Zoom's AI Companion, convenient for teams already using Zoom for meetings.
Channels and DMs
AI Companion summaries
Integrated with Zoom Meetings
Freemium · from Free
Twist
Classic
Calmer, async team communication
Async-first, distraction-reducing chat app, the honest non-AI Slack alternative for focused teams.
Threaded conversations
Async-first design
Channels by topic
Freemium · from $5/user/mo