Slack vs Google Chat vs Microsoft Teams is the decision many companies revisit after their first chat tool starts to strain.
Slack fits teams that want a standalone messaging hub with a large app ecosystem. Google Chat fits Google Workspace teams that want chat next to email and Meet. Microsoft Teams fits organizations standardizing on Microsoft 365.
The short answer
Slack for integration-heavy work chat, Google Chat for Google-centric orgs, Teams for Microsoft-centric orgs.
Top picks
Best Slack vs Google Chat vs Microsoft Teams
Slack is built for fast public and private channels with strong third-party workflows.
Google Chat reduces friction when conversation should stay inside Google Workspace.
Microsoft Teams
Companies that want chat, meetings, and files in one Microsoft hub
Visit Microsoft TeamsTeams is the default when Microsoft identity and compliance already run the company.
Integrations and daily workflows
Slack's app directory is a real advantage when alerts and approvals should land where people already talk.
Google Chat and Teams both integrate deeply with their suites, which matters when the goal is fewer tabs, not more bots.
Search, history, and knowledge
Good search turns chat into memory. All three can work, but quality depends on how your org names channels and uses threads.
If knowledge should live in docs, chat should link out early instead of burying decisions in scrollback.
Migration and change management
Switching chat tools is expensive because habits break. The winning move is often to align chat with email and files rather than fight the suite.
If you must mix stacks, define which tool is official and which is optional so teams do not split across two systems.