Slack vs Microsoft Teams

Slack and Microsoft Teams dominate team chat. The decision usually depends on which ecosystem you already use.

At a glance

Feature	Slack Freemium	Microsoft Teams Freemium
Best for	Most teams that want fast internal communication.	Organisations that use Microsoft 365.
Pricing	Free plan available. Paid plans add more features and limits.	Free plan available. Paid plans add more features and limits.
Platforms	Web, Desktop, iOS, Android	Web, Desktop, iOS, Android
Covers	Team chat apps	Team chat apps, Video conferencing
Key features	Channels and threads Huddles (audio/video) Slack Connect Workflow Builder Thousands of integrations	Chat and channels Video meetings Calling File collaboration Copilot
Strengths	Best-in-class integrations Great user experience Huge ecosystem	Included with many Microsoft 365 plans Deep Office integration Enterprise security
Weaknesses	Free plan hides older history Per-user pricing adds up	Can feel heavy Less pleasant for external collaboration

Choose Slack if…

You want the best chat experience and integrations with lots of non-Microsoft tools.

Choose Microsoft Teams if…

Your company runs on Microsoft 365, where Teams is often already included.

If you pay for Microsoft 365, start with Teams. If your team lives in many different apps and values a great chat experience, Slack is worth it.

Features and pricing change often. Check both vendors' websites for current plans before you buy.