GenOffice
A free, open-source AI office suite for opening, editing, and saving Office files locally, with your choice of AI services.
About GenOffice
GenOffice is an open-source office suite that lets you open, edit, and save documents on your computer. It supports .docx, .xlsx, and .pptx files, and can also edit PDF, HTML, and Markdown. The software itself is free to download and use, with no ads, no watermarks, and no license fees. It has built-in AI editing capabilities: block-level AI editing with snapshots and diff view, as well as document-aware agents, usable via Genspark or your own model API key (BYOK). Built-in providers include Claude, OpenAI, Gemini, and more, with support for custom OpenAI-compatible endpoints. Opening, editing, and saving files, as well as PDF-to-Office conversion, run locally; online AI features only send requests when you use them.
Best for
Best use cases
Open, edit, and save .docx, .xlsx, and .pptx documents locally
Edit PDF, HTML, and Markdown files
Use AI-assisted editing via Genspark or your own API key
Convert PDFs to Office files
Features
AI Editing
Block-level AI editing with snapshots and diff view, plus document-aware agents.
Bring Your Own AI Provider
Use Genspark or bring your own API key; built-in providers include Claude, OpenAI, Gemini, and more, with support for custom OpenAI-compatible endpoints.
Multi-Format File Support
Open and save .docx, .xlsx, and .pptx files; edit PDF, HTML, and Markdown.
Local Processing
Opening, editing, saving, and PDF-to-Office conversion run locally; online AI only sends requests when you use it.
Pros
- Free to download and use, with no ads and no watermarks
- Supports .docx, .xlsx, .pptx as well as PDF, HTML, and Markdown
- AI editing with snapshots and diff view, using Genspark or your own API key
- Opening, editing, saving, and PDF-to-Office conversion run locally
Cons
- Formatting fidelity for complex formats may be inconsistent; the official FAQ recommends checking documents before sharing important files
- The official build sends limited usage statistics by default, which must be manually disabled in settings