genspark-ai/genoffice

Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.

What it solves

GenOffice is an open-source AI-powered office suite designed to replace proprietary software like Microsoft Office. It allows users to create and edit native .docx, .xlsx, and .pptx files, as well as PDFs, Markdown, and HTML, while integrating an AI agent directly into the editing process rather than as a separate chat interface.

How it works

The suite consists of six integrated applications (Docs, Sheets, Slides, PDF, HTML, and Markdown) that use a byte-preserving approach to ensure that only edited portions of files are rewritten, maintaining compatibility with original formats. It operates locally on the user's machine for file handling and conversion, while connecting to various AI providers (such as Claude, OpenAI, Gemini, and local servers) via API keys for intelligent editing and generation. It also includes a local SQLite index for full-text search, which can be enhanced with TypeSafe Jev for semantic reranking of results.

Who it’s for

It is for users seeking a free, open-source alternative to Microsoft Office that integrates AI capabilities for document drafting, spreadsheet analysis, and presentation building, as well as developers and coding agents who need to programmatically create or edit Office files via a CLI or the Model Context Protocol (MCP).

Highlights

  • Native Format Support: Opens and saves .docx, .xlsx, and .pptx files while preserving original file structure.
  • AI-Driven Editing: AI edits appear as tracked changes or diffs with one-click rollback; spreadsheets receive live formulas instead of static values.
  • Local-First Design: File opening, saving, and conversions (e.g., PDF to Word) happen on-device.
  • Agentic Integration: Includes a command-line interface (CLI) and MCP server, allowing coding agents (like Claude Code or Cursor) to manipulate Office files without a GUI.
  • Multimodal Generation: Can generate full investor pitch decks from a single prompt or build HTML landing pages based on a design brief.
  • Semantic Search: Local file search with optional reranking via TypeSafe Jev to find the most relevant document based on content rather than just keywords.

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