CommunityServer

The premium Open Source alternative to Microsoft 365

🎯 Best for:Teams requiring a full office suite with strict data sovereignty requirements.
Visit WebsiteCompare with Microsoft 365
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Apache-2.0License

What is CommunityServer?

Replaces proprietary office suites with a self-hosted collaborative environment for documents, projects, and mail. Features a high-fidelity online editor with 100% compatibility with Microsoft Office formats.

Tech Stack
C#Office Suite & Docs

Why CommunityServer?

  • Best-in-class document rendering
  • Integrated mail and project management
  • Strong security and LDAP integration

Limitations

  • Resource intensive (requires 8GB+ RAM)
  • Complex multi-container deployment
  • Mobile editing requires specific apps
3/5/2026
Last Update
663
Forks
202
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to CommunityServer instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Microsoft 365)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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