Slack is a cloud-based team collaboration platform where you can organise communication in channels, send direct messages, share files, host voice/video calls and integrate with other tools. It works via browser, desktop apps (Windows/Mac/Linux) and mobile (iOS/Android).
For any team—startup, agency, R&D group or operations unit—Slack brings together messaging, file sharing, and integrations into one hub. That helps reduce email overload, keep discussions searchable, accelerate decision-making and bring context to work. If you’ve ever lost track of a project because chat, documents and apps are scattered, Slack brings them into one place.
You create a “workspace” for your organisation. Inside you set up channels (by project, team, topic) and direct messages. You invite team members, external partners, set up integrations (e.g., Google Drive, GitHub, Zapier) and automate workflows via the Slack platform/API. Paid plans lift limitations around message history, file storage, external collaborators, admin controls, compliance and AI features.






