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.
https://genoffice.ai/
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.
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, Atlas Cloud, 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, Atlas Cloud 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.
# Claude Code
claude mcp add --transport stdio genoffice -- genoffice mcp
// Cursor, Claude Desktop or any other MCP client
{ "mcpServers": { "genoffice": { "command": "genoffice", "args": ["mcp"] } } }
# On the machine that has GenOffice (private network; add --token for a shared box)
genoffice mcp --http 3093 --host 0.0.0.0 --token "$GENOFFICE_MCP_TOKEN"# From the client: upload, then use the URL wherever a tool takes a file
curl -T report.docx -H "Authorization: Bearer $GENOFFICE_MCP_TOKEN" http://server:3093/files/
# → { "url": "http://server:3093/files/<id>/report.docx", ... }# docs_read({ "file": "http://server:3093/files/<id>/report.docx" })# docs_apply(...) → output_url, downloadable with curl -o
Over HTTP every session gets a private scratch folder, relative paths and deck
folders resolve inside it, open is not offered, and with
GENOFFICE_ALLOWED_ROOTS unset the tools cannot leave the server's own file
store. render, convert to PDF and create_pdf still start a hidden
GenOffice process, so a headless host needs the app installed and a virtual
display (xvfb-run).
genoffice here is the CLI shipped inside the app (on macOS
/Applications/GenOffice.app/Contents/Resources/cli/genoffice; the settings
pane prints the exact path for your install). The server carries its own
workflow instructions and exposes the op references as genoffice://guide/*
resources, so no skill is needed; the skill and the MCP server can coexist and
the assistant picks one. Cloud features (search, image, media) still go
through the provider configured in GenOffice; everything else runs locally, and
GENOFFICE_ALLOWED_ROOTS confines every tool to the folders you list.
The renewable-energy deck in the demo is what one prompt in Claude Code
with only the genoffice MCP server attached looks like from the protocol
side:
capabilities · guide(slides, spec) · guide(slides, design)
search(query) ×4 → IEA, BNEF and IRENA figures for the slides
search(query, images) ×7 · media(url, ask) ×7
→ candidate photos, each one checked to be a real photograph
deck_start(dir, style, outline) → outline checked: 8 pages to write
deck_page(dir, 0, page) … deck_page(dir, 7, page)
→ each page checked against the outline and the palette; one page sent again
deck_build(dir, out) → renewables-2026.pptx, no image failures
slides_audit(file) · slides_render(file, out)
→ no layout findings; 8 PNGs come back as image content
deck_replace(dir, n, page) ×3 · slides_render(file, out)
→ three pages fixed after looking at the renders
Thirty-eight calls, about thirteen minutes, and the assistant never touched a
shell: the figures, the photos, the guides, the checks and the renders all
travelled as MCP tool results. Only search and media left the machine, to
the provider configured in GenOffice.
All builds come from main; the macOS and Windows installers are signed.
Older versions are on the Releases page.
Installing on Linux
How it works
Seven Electron apps — Docs, Sheets, Slides, PDF, Markdown, HTML and the
tabbed shell — share one engine layer of pure TypeScript packages plus a Rust
sidecar for .xlsx. The original file is always the source of truth: edits
are applied as narrow patches, and everything the editor did not touch
survives the round trip untouched.
open docx ─► archive original by hash (never touched)
─► parse word/document.xml into a block tree, each block anchored to its original XML
─► Tiptap editor (manual + AI editing, dirty tracking)
save ─► dirty blocks → OOXML fragments (referencing existing styles only)
─► splice into the original document.xml; untouched blocks keep their bytes
─► repack the zip; every other entry is copied byte-for-byte
The package-by-package tour (docx/pptx engines, pdf2docx, html2docx, the
agent core and providers) lives in CONTRIBUTING.md.
Development
npm install
npm run fixtures # generate test .docx fixtures
npm test# engine + app unit tests (docs/sheets/slides need no display)
npm run typecheck # tsc --noEmit across every workspace
npm run dev # all six editors + shell against Vite dev servers
npm run dev:docs # a single app (same pattern works per workspace)
npm run dist:mac # package macOS dmg (regenerates third-party notices)
npm run dist:win # package Windows nsis installer
npm run dist:linux # package Linux AppImage + deb + rpm
The sheets app additionally needs a Rust toolchain for its xlsx sidecar
(cargo on PATH); npm run build -w @genoffice/sheets compiles it
automatically. See CONTRIBUTING.md for the checks every
change must pass and how pull requests land.
Community
GenOffice is in active development and your feedback shapes it.
Join the GenOffice group chat on
GenTeam to talk to the team and other users.
Follow @merrickbuilds on X for release
notes, demos and what is being built next.
Star the repo if GenOffice is useful to you — it is the best way to
support the project.
FAQ
Is GenOffice free?Can GenOffice open Microsoft Word, Excel and PowerPoint files?
Does GenOffice work offline?Can GenOffice edit PDF files?Can GenOffice convert PDF to Word, Excel or PowerPoint?Can I use my own AI model or API key?Can GenOffice convert HTML to Word?
Can I drive GenOffice from Claude Code, Codex, Cursor or a script?
Does GenOffice collect any data?
Security
See SECURITY.md for the process security posture (renderer
sandboxing, IPC validation, external-link gating) and the threat models for
AI-generated content.
Acknowledgements
GenOffice would not be possible without these open-source projects:
Liberation, Carlito, Caladea, and Noto CJK fonts (OFL/Apache-2.0) — bundled
document fonts.
npm run notices regenerates the bundled third-party license summary
(tools/gen-third-party-notices.mjs); all runtime dependencies are
MIT/Apache-2.0/BSD-3-Clause/OFL.
