univer

The premium Open Source alternative to Microsoft 365 Copilot

🎯 Best for:Enterprises building custom, AI-enhanced collaborative office tools.

What is univer?

A full-stack framework for building AI-driven spreadsheets and documents. It features a pluggable architecture and a Rust-powered core for high-performance collaborative editing.

Tech Stack
TypeScriptOffice Suite & Docs

Why univer?

  • AI-native design
  • High-performance Rust core
  • Multi-document support (Sheet/Doc)

Limitations

  • High architectural complexity
  • Active development (API changes)
  • Requires modern infra
3/5/2026
Last Update
1,108
Forks
167
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

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

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

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