Secure, self-hosted team collaboration
Mattermost is an open-source messaging platform that can be self-hosted for full data control, with AI plugins for summarization and workflow automation. It's popular with government, defense, and dev teams.
Team chat and collaboration
Slack is the default workplace messaging tool with channels, huddles and thousands of integrations. Busy workspaces quickly become hard to keep up with.
Chat, meetings, and Copilot AI in one hub
Microsoft Teams combines chat, video calls, and file collaboration with Copilot AI for summarization and meeting notes. It's bundled with Microsoft 365 subscriptions for enterprises.
Chat, voice, and communities for any group
Discord offers text, voice, and video channels organized into servers, popular with startups, gaming, and online communities as a lighter-weight, often free Slack alternative. AI features include auto-moderation and summaries.
Team messaging built into Google Workspace
Google Chat provides direct messages, spaces, and huddles integrated with Gmail, Docs, and Meet, with Gemini AI for summarizing conversations. It's aimed at Google Workspace customers.
Team chat built into the Zoom platform
Zoom Team Chat provides messaging and channels tightly integrated with Zoom meetings and its AI Companion for summaries and action items. It suits organizations centered on Zoom for video.
Calmer, async team communication
Twist is a threaded, async-first messaging app from Doist designed to reduce real-time chat noise and interruptions. It organizes conversations by topic rather than a constant stream.