Slack is a collaboration hub that connects your team with the apps, services, and resources they need to get work done.
Starting from $6.67 per user per month
Best Mattermost Alternatives ranked by AI · updated May 2025
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Mattermost is an open-source, self-hosted Slack alternative. It provides team collaboration and messaging tools for modern enterprises.
Price: Free for the basic version, paid plans for enterprise features
🎯 mattermost.com
Top 6 Mattermost alternatives
Microsoft Teams is a collaboration platform that allows for chat, meetings, file sharing, and integrations with other Microsoft products.
Starting from $5 per user per month
Rocket.Chat is an open-source team communication platform that offers real-time chat, video conferencing, file sharing, and more.
Free, with paid plans available for additional features and support
IRCCloud is a modern IRC client that keeps you connected with your team, wherever you are.
Free with premium plans available
Discord is a popular communication platform that offers text, voice, and video chat for gamers and communities.
Free with optional paid plans
Flock is a collaboration and communication tool with messaging, file sharing, video conferencing, and productivity features.
Starting at $4.50 per user per month
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