Slack
Team messaging and work platform with AI features for channels, workflows and app integrations.
About Slack
Slack is a work platform that brings team conversations, files, apps and AI assistants into one place. Work is organised in channels, which are shared spaces for teams, colleagues and AI agents.
Slackbot, the built-in AI assistant, can answer questions using company context, help automate tasks and work inside channels. AI-powered search is meant to help people find past files, decisions and conversations.
Teams can build workflows by click or by code, manage tasks with Lists, hold huddles (built-in audio and video calls) and chat with clients and vendors through Slack Connect. Slack also connects with many other tools, such as Google Drive, Asana, Box and Zoom.
- Channels, huddles and Slack Connect
- Slackbot AI assistant and AI-powered search
- Workflow automation and templates
- Integrations and developer tools
Slack states that it has a security programme protecting data at every layer. Check the pricing page for plans and costs.
What it does
Requirements & licence
| Runs on | Windows, macOS, Linux, Android, iOS, Web browser |
|---|---|
| Internet | Needs internet |
| System requirements | Modern web browser, or the Slack desktop or mobile app. Internet connection required. |
| Licence | Freemium — Proprietary SaaS (Slack Terms) |
| Source code | Not included — you buy the right to use the software, not ownership of the code |
| Distribution | Online service |
| Last updated | 22 Oct 2026 |
| Support | Community or self-service |
| Documentation | Read the user guide |
Downloads
Learn Slack
Hand-picked video tutorials from YouTube to help you get started and get more out of it.
Videos are made by independent creators and play from YouTube. More on YouTube
Get trained on Slack
Want yourself or your team trained to use Slack properly? Tell us and we will arrange a trainer — online or in person.
Do you teach Slack? Become a trainer.
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Publisher
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