office-engine

Univer is an open-source Office SDK from DreamNum for embedding spreadsheet, document, presentation, and structured-data experiences in web products and for processing workbooks and documents in Node.js. Its plugin-based architecture uses Canvas rendering, a formula engine, and a unified Facade API for workbooks, worksheets, ranges, formulas, documents, commands, and events; capabilities can be composed through presets or manually registered plugins, with support for React, Vue, and Web Components. The SDK provides browser and headless runtimes, server-oriented automation primitives, and AI-agent workflows for programmatically inspecting, editing, and verifying Office content. Open-source packages cover core spreadsheet and document editing, formulas, formatting, filtering, validation, comments, and related UI features; collaboration, advanced server features, and some import/export, chart, presentation, and enterprise capabilities are provided separately through Univer Pro. The repository is licensed under Apache-2.0.

OfficeCLI is an open-source command-line Office suite developed by iOfficeAI for AI agents to create, read, edit, render, and automate Word (.docx), Excel (.xlsx), and PowerPoint (.pptx) files without a Microsoft Office installation or external dependencies. It is distributed as a single binary and provides commands for creating documents, adding, modifying, moving, copying, and removing elements, reading text and structure as plain text or JSON, and saving changes. Its built-in HTML rendering engine converts DOCX, XLSX, and PPTX files to HTML or PNG for a render-and-review workflow. The `watch` command provides a live browser preview that refreshes after document changes, while the tool can also analyze formatting and structural issues, evaluate Excel formulas, and install an agent skill for supported AI coding agents.

Euro-Office DocumentServer is a browser-based document editing service used with OpenCloud. The video describes it as an OnlyOffice fork that performs more processing on the client side, potentially reducing server load. The project describes itself as a sovereign office and provides a Docker image for testing and integration; Debian and RPM packages are stated to be forthcoming.

GenOffice is a free, open-source AI office suite from Genspark AI for macOS, Windows, and Linux. It consists of six Electron applications sharing an engine layer: Docs for .docx files, Sheets for .xlsx spreadsheets, Slides for .pptx presentations, PDF for viewing and editing PDFs, Markdown for plain Markdown files, and a shell application that hosts the editors. It opens and saves Microsoft Office formats, and includes light, dark, and system themes. Its AI panel supports document-aware, block-level edits with version snapshots and diffs; in spreadsheets, presentations, and PDFs it provides a tool-calling agent over document state. Built-in tools include web search, image search, image generation, and media analysis. Users can sign in through Genspark or supply their own keys for providers including Claude, OpenAI, Gemini, DeepSeek, Kimi, GLM, Qwen, Doubao, MiniMax, Grok, Mistral, and OpenRouter, as well as custom OpenAI-compatible endpoints and local servers. GenOffice Docs uses byte-preserving .docx editing in which only modified paragraphs are regenerated, with Word-compatible pagination, tracked changes, comments, styles, equations, and ink. GenOffice Sheets uses the open-source Univer core with in-house extensions and a Rust .xlsx import/export sidecar, plus charts, pivot tables, slicers, conditional formatting, and formula tracing. GenOffice Slides has an in-house .pptx parsing, rendering, and editing engine with masters, layouts, charts, cropping, ink, and text shaping. GenOffice PDF supports annotations, forms, outlines, stamps, signatures, page operations, printing, direct text reflow and image editing, and local conversion to editable Word, PowerPoint, or Excel files; scanned PDFs can use system OCR on macOS and Windows. GenOffice Markdown is a Tiptap block editor that saves headings, lists, tables, images, and code blocks back to plain Markdown. The suite is distributed under the Apache-2.0 license with installers for the three supported desktop platforms.

Jevbox is a self-hostable, permission-aware document library from Extend for uploading, visually browsing, and inspecting parsed documents. It uses Extend for document parsing and stores parsed structures, heading outlines, source passages, and original files; supported viewers include PDF, DOCX, XLSX, PPTX, Markdown, code, JSON, CSV/TSV, images, archives, audio, and video, with a safe download fallback for unknown formats. Its JEV retrieval system performs permission-filtered hierarchical beam search across categories, documents, and sections, followed by usefulness scoring of source passages. Users can ask questions through the AI SDK or web chat, view inline citations and source previews, attach accessible documents to scope an answer, and connect through REST and MCP APIs. Uploads can be automatically filed by walking existing folders and validating model-proposed branches, while organization permissions are evaluated through SpiceDB. The repository supports local operation with Node, pnpm, Docker Compose, PostgreSQL, and SpiceDB, and provides Docker, Render, Helm, and AWS/EKS deployment options. It includes organization accounts, invitations, role-based sharing, durable background jobs, queued chat processing, and configurable model providers. Jevbox's original code is licensed under the MIT License; third-party code and assets retain their own licenses.