Univer

Univer is an office software development kit that embeds spreadsheets, documents, presentations, and PDFs into applications.

Univer Office SDK is a full-stack framework with a microkernel and plugin architecture designed for developers. It brings a unified office runtime into your product, enabling humans and AI agents to collaborate using spreadsheets, documents, presentations, bases, boards, and PDFs. The software provides a Canvas2D rendering engine supporting large datasets, over 500 built-in functions, real-time collaboration with operational transformation algorithms, and import and export capabilities for common formats like xlsx, csv, docx, pptx, and pdf. It is built for integration into web applications using frameworks such as React, Vue, Angular, Next.js, and Astro, and supports server-side processing via Node.js for AI automation and headless workflows.

Univer at a glance

Best for: Software engineer, Product manager
Runs on: Web, Node.js
Pricing: Free
Released: September 2022
Category: AI productivity tool
Website: univer.ai

Key features

Spreadsheet editor with 500+ functions
Word-like rich text document editor
Presentation slide editor with Canvas2D
Table-driven business bases and boards
Real-time collaboration with conflict resolution
Import and export for xlsx, docx, pptx, and pdf
Plugin architecture with 100+ official plugins
Node.js support for headless server processing

Use it for

Embedding spreadsheets and documents into web apps
Building AI agent workflows for document automation
Enabling real-time multiplayer document editing
Converting Office files on server-side runtimes

Alternatives to Univer

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OfficeCLI — Single binary, open-source, and gives AI agents visual feedback without needing Office installed.
Acrylic — Edits native Office files directly without format conversion.

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