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Slack

A messaging platform built for teams, organizing conversations into channels instead of endless email threads.

Developer Slack Technologies (Salesforce)

Launched August 2013

Category Team Messaging

Platforms Windows, Mac, Web, iOS, Android

What is Slack?

Slack is a channel-based messaging platform originally built by Stewart Butterfield's team as an internal tool, before launching publicly in August 2013. The name stands for "Searchable Log of All Conversation and Knowledge."

Slack popularized the idea of organizing workplace communication into topic-based channels rather than group emails or one-on-one chats, and it played a major role in shaping how modern remote and hybrid teams communicate. Salesforce acquired Slack in 2021, and it remains one of the most widely used team messaging tools globally.

Key features

Channels: Public or private conversation spaces organized by team, project, or topic
Huddles: Lightweight audio/video calls for quick conversations without scheduling a meeting
Integrations: Connects with thousands of apps including Google Drive, Zoom, and Asana
Workflow Builder: No-code automation for repetitive tasks like onboarding or approvals
Searchable History: Fully searchable message archive across channels and DMs

🔧 Common Slack fixes

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