Stewart Butterfield
Co-founder; former CEO
The AI work platform — channels, messaging, huddles, and workflow automation that connect your team and tools in one place.



Slack is the AI work platform where teams communicate and get things done. Organize conversations in channels, jump into huddles, automate routine work with Workflow Builder, and connect thousands of apps — including a growing set of MCP partner apps you can drive straight from Slackbot. For creators and small teams, it's a hub for collaborating with clients, coordinating projects, and wiring up the tools you already use without switching tabs.
Common questions about Slack
Traffic and momentum for Slack
Official videos and tutorials for Slack.
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The people behind Slack
Co-founder; former CEO
Chief Product Officer and Interim CEO
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