💡 Pick it for a mature team-chat platform with the broadest integration ecosystem.
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 Fuse IM Alternatives ranked by AI · updated Aug 2026
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Fuse IM is a team instant-messaging and collaboration service for organizations that need persistent workplace conversations. It combines direct and group messaging with file sharing and communication features in a business-focused interface.
Top 6 Fuse IM alternatives
💡 Choose it if your organization already relies on Microsoft 365 and needs chat plus meetings and files.
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
💡 Pick it when self-hosting, open source, and data control matter more than a turnkey service.
Mattermost is an open-source, self-hosted Slack alternative. It provides team collaboration and messaging tools for modern enterprises.
Free for the basic version, paid plans for enterprise features
💡 Choose it for an open-source, self-hostable alternative that also supports customer communication.
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
💡 Pick it for free group voice and community-oriented communication instead of formal workplace workflows.
Discord is a popular communication platform that offers text, voice, and video chat for gamers and communities.
Free with optional paid plans
💡 Choose it if your team already uses Google Workspace and wants messaging tied to Gmail and Drive.
Google Chat is a communication software developed by Google that allows users to message in direct groups or one-on-one.
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