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 ...
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README
GenOffice The world's first full-featured open-source AI Office suite. Word, Excel, PowerPoint and PDF files, edited by you and your AI, saved back in the real formats.
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GenOffice is a free, open-source alternative to Microsoft Office for macOS, Windows and Linux. It opens and saves native .docx, .xlsx and .pptx files, edits PDF, Markdown and HTML, and puts an AI agent next to every document — not a chat box bolted on the side, but an editor that reads the file, makes the change, and shows you exactly what it touched.
Real formats, byte-preserving. Only what you edit is rewritten. Everything else in the file survives byte-for-byte, so documents keep working in Word, Excel and PowerPoint. AI you can review. Edits land as tracked changes and diffs with one-click rollback. Spreadsheets get live formulas, not pasted numbers. Decks and pages are generated onto the canvas and stay fully editable. Local by design. Files open, edit, save and convert on your machine. PDF → Word / Excel / PowerPoint, Markdown → Word and HTML → Word all run on-device. Only the AI calls leave the machine, to the provider you choose. Find files by what they say. The home screen searches the names, folders and full text of your .docx, .xlsx, .pptx, PDF, Markdown and HTML files from a local SQLite index, CJK included. Optionally, the top hits are reranked by TypeSafe Jev, the System One judgment model, so the file that answers your question comes first. Your keys or none. Sign in with Genspark and skip keys, or bring your own key for Claude, OpenAI, Gemini, DeepSeek, Kimi, GLM, Qwen, Doubao, MiniMax, Grok, Mistral, OpenRouter, Requesty, Opper, Cheaper Inference, or any OpenAI-compatible endpoint, local servers included. Scriptable and agent-ready. The app ships a genoffice command line and a skill for Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf, so a coding agent can create, convert, read and edit real Office files on your machine without opening a window.
Get it: macOS (Apple Silicon and Intel) · Windows (x64 and Arm) · Linux (deb, rpm, AppImage) — details and requirements in Download. Demo Six apps, one AI panel, a file search reranked by TypeSafe Jev, and a command line for your coding agent. Every screenshot is the real app on macOS, with the AI driven from the prompt you can read in the panel. 1 · Docs — open and edit .docx with an AI you can review
Opens the file as Word lays it out — two-column sections, full-bleed images, shaded tables, headers and footers, pagination on Word's line metrics. Styles, comments, tracked changes, equations and ink round-trip untouched. Ask for the edit — the AI reads the blocks it needs, rewrites the Overview and inserts a new bulleted section. Every AI turn is a snapshot you can roll back; with Track changes on, edits arrive as Word-style revisions.
2 · Sheets — .xlsx with live formulas and charts, not pasted numbers
Build it — from one sentence the agent adds a Summary sheet with real SUMIFs by region and category, inserts a column chart, and applies the 43 changes as a single undoable batch. Ask it — questions about the workbook come back with the reasoning and the exact cells used as clickable citations. Under the hood: an in-house Rust .xlsx engine, pivot tables, slicers, conditional formatting and formula tracing.
3 · Slides — from a prompt to a .pptx deck
One line in — "Create a 10-slide investor pitch deck for Aurora Home…". GenOffice plans the storyline, researches the numbers, and drafts every slide onto the canvas as a real .pptx. A finished deck out — eleven designed slides with consistent typography, imagery and a closing call to action; keep editing with masters, layouts, smart guides and non-destructive cropping, or ask the panel to restyle, rewrite and reorder.
4 · PDF — edit PDF text in place, convert PDF to Word on-device
Edit inside the page — Edit text mode outlines every text block for in-place retyping; the content stream is rewritten through PDFium with the original fonts, not a cover-up annotation. Ask the AI about a long report and get answers with page citations. Convert on-device — PDF Converter → PDF to Word produces an editable .docx that opens in Docs next to the source, headings, stat rows and paragraphs intact. Excel and PowerPoint targets work the same way; scanned pages go through the system OCR.
5 · HTML — an AI page and UI builder, design brief first Say what the page is for and who it is for. The AI proposes a design brief first — hook, palette, typography and style directions — then builds a single self-contained .html file against those tokens.
Generated from one prompt — a bold hero, feature cards, pricing and a waitlist form for Lumen, built in the Midnight Studio direction. Click any element to restyle it, double-click to edit text, or switch to the CodeMirror source view. Same design, new direction — one Restyle request swaps the brief's tokens and the page follows: warm paper, editorial serif, sun-orange accent, nothing rewritten. Present fullscreen, or export as PDF or a native editable Word document.
UI mockups — the "personal dashboard" starter turns a persona into a working layout: left rail, greeting, billable-hours sparkline, invoice and utilization cards, all real HTML you can hand to a developer. Data stories — the "data report" starter builds an editorial broadsheet: serif masthead, one headline number, a rule-separated stat row, inline SVG charts and a methodology note.
6 · Markdown — a block editor over plain .md, with Ask AI
Ask AI about a selection — select any passage and an Ask AI chip appears: type an instruction or pick a suggestion, send it now, or queue several anchored edits and run them in one pass. The same entry exists in every app. Rendered, saved as plain Markdown — headings, lists, tables, images, code blocks and Mermaid diagrams in a Tiptap block editor, written back as plain .md, with a fully local Markdown → Word export.
7 · Search — find the file that answers the question, with TypeSafe Jev Every file in your work folder is indexed on-device: names, folders and the extracted text of Word, Excel, PowerPoint, PDF, Markdown and HTML files, in a SQLite full-text index with CJK-aware tokenizing. Switch on Jev search reranking and the top 20 local hits are judged by TypeSafe Jev, the System One model that returns one calibrated relevance score per document in a single call instead of generating text. The list is reordered by that score; if the call fails or times out, the local order stays.
Same words, different answers — "laptop refresh policy" matches a browser-cache refresh policy, a brand-refresh plan and a dashboard-refresh schedule word for word, so full-text ranking puts them first. Jev reads the excerpts and moves the equipment standards document, the one that states the three-year replacement cycle, to the top. The Jev badge next to the result count shows when the order came from the model. Off by default, one switch to turn on — Settings → AI Media & Search → Local file search. Pick OpenRouter or TypeSafe direct, paste a key, hit Test connection. Only when the switch is on do excerpts of the top hits leave the device; the index itself never does.
8 · CLI — your coding agent drives GenOffice, on your machine GenOffice ships a genoffice command line and an agent skill. Install the skill and Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode or Windsurf can create, convert, read and edit real Office files through the same engines as the apps, without opening a window.
One prompt to your agent — "Build an eight-slide deck about the Solar System." The agent reads the skill, writes a style sheet, an outline and one page spec per slide, generates the two photos with genoffice image, and lets genoffice slides check reject anything that overflows or overlaps before genoffice create assembles the .pptx and slides render hands back a PNG per slide to look at. Install once, from Settings → Integrations — GenOffice lists the coding agents it finds on this computer and writes the skill into each one you pick. Or download the skill as a zip, or run npx skills add genspark-ai/genoffice. Commands and the full workflow are in Command line and agent skill.
9 · MCP — the same tools over the Model Context Protocol Every genoffice command is also an MCP tool. Claude Code, Claude Desktop, Cursor and any other MCP client can start genoffice mcp themselves, with no skill to install and no window open, and get 29 tools plus the op references as resources. A second, HTTP server inside the app lets an agent build a Word document in a visible editor tab while you watch.
One prompt, 38 tool calls, no shell — "Build an eight-slide investor briefing about renewable energy in 2026, with a real photo on the cover and wherever a photo helps." The agent pulls the figures and the photos with search, asks media whether each candidate picture is a real photograph, calls deck_start with a style sheet and an outline, then deck_page once per slide; every page is checked against the outline and the palette before it is kept, deck_build assembles the .pptx, slides_audit looks for overflow, slides_render hands back a PNG per slide as image content the model can look at, and deck_replace fixes the three pages it did not like. Connect once, from Settings → Integrations — copy the claude mcp add line for Claude Code, or the JSON block into Cursor, Claude Desktop or any other MCP client. Option B switches on the local HTTP server for the visible Word editor. Both are described in MCP server.
Why GenOffice
Open source, Apache-2.0, built in the open on GitHub. Yours to run. Native apps for macOS, Windows and Linux; files stay on your disk and every edit, save and conversion happens on your machine. Real Office files. Native .docx, .xlsx and .pptx, byte-preserving: the parts of a file you did not touch are copied exactly as they were. An AI that edits the document itself. Tracked changes in Docs, live formulas and charts in Sheets, slides drawn onto the canvas, every AI turn a snapshot you can roll back. Your model, your key. Sign in with Genspark, or bring a key for Claude, OpenAI, Gemini, DeepSeek and more, local servers and any OpenAI-compatible endpoint included. PDF done properly. Edit text inside the page, and convert PDF to Word, Excel or PowerPoint on-device, with system OCR for scans. Markdown and HTML too, with the same AI panel and local export to Word. Search that finds the answer, not the keyword. Full-text search over every document in your folders, indexed on-device, with optional reranking by TypeSafe Jev, the System One judgment model. Scriptable. A genoffice command line, an agent skill and an MCP server put every engine at the service of Claude Code, Claude Desktop, Codex, Cursor and other agents, still on-device. Free, for individuals and teams alike.
AI backends Sign in with Genspark and there is nothing to configure: model calls route through the Genspark proxy (Claude, GPT and Gemini families) and the agents get web and image search, image generation, and image/audio/video analysis. Or bring your own key. Settings → AI lists Claude, OpenAI, Gemini, DeepSeek, Kimi, GLM, Qwen, Doubao, MiniMax, Grok, Mistral, OpenRouter, Requesty, Opper, Cheaper Inference and OpenCode Zen/Go, plus a custom slot for any OpenAI-compatible endpoint (base URL + key), including local model servers. Search and media have their own per-capability providers under AI Media & Search: Serper, Serply, Tavily or Parallel for web search, and OpenAI, Gemini, Doubao/Seedream, GLM, Grok, Qwen, MiniMax or any OpenAI-compatible images endpoint for image generation and image/video analysis, plus DeepSeek V4.1 Flash for image analysis. TypeSafe Jev reranks the home screen's file search. Under AI Media & Search → Local file search, switch on Jev search reranking and pick an endpoint: OpenRouter (model typesafe/jev-1.13) or TypeSafe's own API. The key is stored only on this device. It is off by default; when on, the excerpts of the top 20 local hits are sent for judgment and nothing else leaves the machine. Parallel works without an account: its free Search MCP (rate-limited) is the default web search whenever no Genspark login or search key is configured, and it runs ahead of the DuckDuckGo scrape. Select Parallel under Web search and enter a Parallel key to use the Search API instead. The whole suite ships light, dark and system themes. Themes only change what is on screen: exports, prints and saved files always keep the document's own colors. Command line and agent skill Everything the apps can do to a file, the genoffice command line can do from a terminal: inspect, convert, create, read and edit Word, Excel, PowerPoint, PDF, Markdown and HTML on the same engines, headless. It installs with GenOffice, needs no runtime of its own, and never sends a document anywhere. Paired with the bundled agent skill, it turns a coding agent into a document worker that produces real Office files instead of Markdown approximations. Works with: Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf out of the box, any other agent that reads skills, and, through the MCP server, Claude Desktop and every MCP client. Install the skill
How What happens
Settings → Integrations in the app Lists the agents found on this computer; one click writes the skill into each one you choose. An Update button appears when a GenOffice release ships a newer skill.
Download as zip on the same page The layout claude.ai, the Claude desktop apps and other assistants accept as an uploaded skill.
npx skills add genspark-ai/genoffice Installs from this repository into any skills-compatible agent.
Then start a new chat and ask for a document. The skill teaches the agent when to reach for genoffice, how to read a file before editing it, and how to check its own work. Quickstart from the terminal genoffice --version genoffice info report.docx --json # headings and blocks; or sheets, slides, pages genoffice convert report.md --to pdf # md/html/docx/xlsx/pptx → pdf, pdf → docx/xlsx/pptx, … genoffice create --type docx --from notes.md --out notes.docx genoffice create --type xlsx --from table.json --out sales.xlsx # "=SUM(B2:B9)" cells stay live formulas genoffice docs read report.docx --range 0-9 --json # then `docs apply --ops edits.json` edits in place genoffice render report.docx --out shots/ # one PNG per page, to look at what you made genoffice open sales.xlsx # hand the result to the editor Every command prints a one-line summary, or a single JSON object with --json. Edits are atomic: a rejected op leaves the file untouched and comes back with a guided error. genoffice help lists the current command surface; the full reference is packages/cli/README.md. What the agent actually runs The Solar System deck in the demo took one prompt in Claude Code. Behind it, the agent followed the skill's staged workflow and the CLI checked every stage before the next one started: genoffice capabilities --json # which cloud tools GenOffice has configured genoffice guide slides design # the deck workflow and layout library genoffice image "the eight planets in a row …" --aspect 16:9 --out deck/assets/cover.jpg genoffice slides check deck/outline.json --json # 8 pages, no findings genoffice slides check deck/pages/01.json --json # builds one slide, audits overflow and overlap … # one page file per slide, fixed until each check is clean genoffice create --type pptx --spec deck/pages --outline deck/outline.json --out deck/solar-system.pptx --json genoffice slides render deck/solar-system.pptx --out deck/shots --json genoffice slides audit deck/solar-system.pptx --json # 8 slides, no layout issues genoffice slides replace deck/solar-system.pptx --slide 4 --spec deck/pages/05.json --json genoffice open deck/solar-system.pptx No model call happens inside genoffice: the agent does the thinking, the CLI does the building and the checking, and the result opens in GenOffice or PowerPoint as an ordinary .pptx. MCP server The same commands are available as Model Context Protocol tools, for assistants that cannot run a terminal or that you would rather not give one. There are two ways in, both shown with copy-ready snippets in Settings → Integrations → MCP:
Way What it is
A · genoffice mcp (recommended) A stdio server the assistant starts itself; GenOffice does not need to be open. One tool per command (info, convert, create_docx, create_xlsx, create_pptx, create_pdf, docs_read / docs_apply / docs_check, sheet_*, slides_*, render, guide, search, image, media, open) plus the staged deck flow deck_start → deck_page → deck_build → deck_replace. Ops, specs and Markdown are passed inline, so a client without a file system still works.
B · Local HTTP server Runs inside the GenOffice app on http://127.0.0.1:3093/mcp (Streamable HTTP, with legacy SSE). Its tools drive a visible Word editor tab: create_session, insert_content, replace_blocks, apply_ops, read_document, save_session, and you watch the document take shape. Off by default; switch it on in the same settings pane.
C · genoffice mcp --http The stdio tool set as a Streamable HTTP server for clients on other machines: a container, a sandbox, a shared box on your network. Files travel with the calls: PUT /files/<name> uploads one and returns a URL, every file parameter takes an http(s) URL, and a tool that writes a file hands it back as a download URL plus, when small, the bytes as an MCP resource. --host 0.0.0.0 opens it to the network, --token protects it.