What Slack does
Slack is a team-collaboration and messaging platform built around organized, persistent channels. Rather than scattering workplace conversation across email threads, Slack lets teams group discussions by topic, project, department, or any other category that fits their workflow. Channels are searchable, so past decisions and shared files remain retrievable long after a conversation ends. At its core, Slack supports direct messages for one-on-one or small-group conversations, channel-based group chat with threaded replies, and light real-time collaboration through voice and video huddles that also support screen sharing. These huddles are designed for quick, informal check-ins rather than scheduled video conferences, and they launch directly from any conversation. Slack's integration library connects it to a wide range of third-party tools — source-control platforms, project-management trackers, cloud-storage services, CI/CD pipelines, and more — so teams can receive notifications and take lightweight actions without leaving the messaging interface. A built-in workflow builder lets teams automate routine tasks such as onboarding messages, approval requests, and status updates without writing code. Slack Canvas is an embedded document surface where teams can draft shared notes, briefs, or reference material that lives alongside the channel it belongs to. Search works across channels, direct messages, files, and canvas content, making institutional knowledge easier to locate. Slack runs on Windows, macOS, and Linux. The desktop app available on this page is the full offline installer sourced directly from Salesforce's official distribution server at downloads.slack-edge.com. Slack operates on a freemium licensing model: core messaging features are available at no cost, while paid plans unlock extended message history, additional integrations, and administrative controls. For security, only download Slack from its official publisher, Salesforce, or from the verified domain shown on this page.
