Is Univer free and open source?

Yes. The Univer repository on GitHub is licensed under Apache-2.0 and includes core capabilities for Sheets, Docs and Slides. The Univer team also offers Univer Pro, which adds features such as real-time collaboration, import/export, charts, pivot tables and enterprise integrations on top of the open-source SDK.

Can AI agents edit Univer documents through MCP?

Yes. Univer points agents to a separate dream-num/univer-mcp project for controlling documents with natural language through the Model Context Protocol, and to dream-num/univer-sdk-skills for reusable agent instructions. For custom tools, the Univer AI SDK is a TypeScript toolkit for building Office command-line interfaces that agents can call.

Does Univer run on a server without a browser?

Yes. Univer is isomorphic: the same architecture runs in the browser with its canvas UI or headless in Node.js, and the Facade API works the same in both. A server can open, calculate and change workbooks with the same engine the browser uses, and the Univer 1.0 release adds a Server SDK for collaboration and file conversion.

Which file formats can Univer 1.0 import and export?

The Univer 1.0 release notes list import and export for XLS and XLSX spreadsheets, DOC and DOCX documents, and PPT and PPTX presentations, plus CSV and TSV for spreadsheets. Supported browsers are Chrome and Edge 88+, Firefox 90+, Safari 14.1+ and Electron 12+.

Univer · 2026-09-24 · major

Univer 1.0 — an open-source office SDK built as a harness for AI agents

Univer 1.0 puts Sheets, Docs, Slides, Boards, Bases and PDFs under one Apache-2.0 SDK. It adds embedded documents, mobile editing, a Server SDK and an AI SDK that lets agents edit and check Office files.

One open-source runtime for office documents that both people and AI agents can edit.

Key specs

GitHub stars	19K

Quick facts

Version	v1.0.0
Maker	dream-num (Univer team)
License	Apache-2.0
Editors	Sheets, Docs, Slides, Boards, Bases, PDFs
SDKs	Web SDK, Server SDK, AI SDK
File formats	XLS/XLSX, DOC/DOCX, PPT/PPTX, CSV/TSV

What is it?

Univer 1.0 brings six editors — Sheets, Docs, Slides, Boards, Bases and PDFs — into one SDK with shared plugin and command systems. The release also lets you embed one document in another and keep editing it, so a spreadsheet inside a doc keeps its live cells and formulas. The project now calls itself "The Office Harness for AI Agents".

How does it work?

Rendering is canvas-based, and the same engine runs in the browser or headless in Node.js behind one Facade API. Every change goes through commands, which gives undo/redo and collaborative editing. The new AI SDK is a TypeScript toolkit for Office command-line tools: agents load and edit documents, convert Office files, check results with screenshots and layout diagnostics, and stage edits in a Worktree for human review.

Why does it matter?

Agents that produce spreadsheets and slide decks usually write files blind and hope the layout holds. The Univer SDK gives them a real office engine plus a way to look at the result, while product teams get embeddable editors under Apache-2.0 instead of sending users to a separate suite. The repo gained about 845 GitHub stars in one day on GitHub trending after the release.

Who is it for?

developers embedding office editors or building document agents

Frequently asked questions

Is Univer free and open source?: Yes. The Univer repository on GitHub is licensed under Apache-2.0 and includes core capabilities for Sheets, Docs and Slides. The Univer team also offers Univer Pro, which adds features such as real-time collaboration, import/export, charts, pivot tables and enterprise integrations on top of the open-source SDK.
Can AI agents edit Univer documents through MCP?: Yes. Univer points agents to a separate dream-num/univer-mcp project for controlling documents with natural language through the Model Context Protocol, and to dream-num/univer-sdk-skills for reusable agent instructions. For custom tools, the Univer AI SDK is a TypeScript toolkit for building Office command-line interfaces that agents can call.
Does Univer run on a server without a browser?: Yes. Univer is isomorphic: the same architecture runs in the browser with its canvas UI or headless in Node.js, and the Facade API works the same in both. A server can open, calculate and change workbooks with the same engine the browser uses, and the Univer 1.0 release adds a Server SDK for collaboration and file conversion.
Which file formats can Univer 1.0 import and export?: The Univer 1.0 release notes list import and export for XLS and XLSX spreadsheets, DOC and DOCX documents, and PPT and PPTX presentations, plus CSV and TSV for spreadsheets. Supported browsers are Chrome and Edge 88+, Firefox 90+, Safari 14.1+ and Electron 12+.

Try it

pnpm add @univerjs/presets @univerjs/preset-sheets-core