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Microsoft Teams vs Zulip

A side-by-side look at Microsoft Teams (the paid SaaS) and Zulip (the open source alternative). Use this page to decide if the switch fits your team and workflow.

Microsoft Teams Zulip
Tagline Video, chat and collaboration bundled with Microsoft 365. Threaded team chat with topics.
License Proprietary SaaS Apache-2.0
Pricing Included in Microsoft 365 from $6.99/month; Teams Essentials from $4/user/month standalone. Free to self-host · optional paid hosted plan
Self-host option No Yes — difficulty 3/5
Hosted cloud available Yes (only option) Yes
Desktop apps Varies by product Windows, macOS, Linux
Mobile apps Official apps typically available iOS, Android
Ad slot — between tables

Best for

Async-heavy teams that want topic-based threading.

Zulip strengths

  • Topic-based threading prevents channel noise.
  • Great for async and open-source communities.
  • Powerful search and history.

Zulip weaknesses

  • Topic model has a learning curve.
  • Smaller ecosystem of third-party integrations.
  • UI feels less polished than Slack.

What's the catch with Microsoft Teams?

  • Deeply tied to Microsoft ecosystem.
  • Resource-heavy desktop client.
  • Chat and meeting features sprawl across tabs.

Still unsure?

Check the full list of alternatives to Microsoft Teams: see Microsoft Teams alternatives, or learn more about Zulip on its project page.