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.
- 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, or any OpenAI-compatible endpoint, local servers included.
Get it: macOS (Apple Silicon and Intel) · Windows (x64 and Arm) · Linux (deb, rpm, AppImage) — details and requirements in Download.
Six apps, one AI panel. Every screenshot is the real app on macOS, with the AI driven from the prompt you can read in the panel.
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| 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. |
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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. |
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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. |
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| 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. |
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.
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| 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. |
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| 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. |
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| 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. |
- 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,.xlsxand.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.
- Free, for individuals and teams alike.
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 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 or Tavily 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.
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.
| Platform | Requirements | Download |
|---|---|---|
| macOS — Apple Silicon (arm64) | macOS 11+ | Latest .dmg (arm64) |
| macOS — Intel (x64) | macOS 11+ | Latest .dmg (x64) |
| Windows (x64, most PCs) | Windows 10+, Intel/AMD | Latest -x64.exe installer |
| Windows on Arm (ARM64) | Windows 11 on Arm (Snapdragon X and similar) | Latest -arm64.exe installer |
| Linux — Debian / Ubuntu | x86_64, glibc 2.34+ (Ubuntu 22.04 or newer) | Latest .deb |
| Linux — Fedora / RHEL / openSUSE | x86_64, glibc 2.34+ (Fedora 35+, RHEL 9+, Leap 15.6+) | Latest .rpm |
| Linux — other distributions | x86_64, glibc 2.34+, FUSE 2 | Latest .AppImage |
All builds come from main; the macOS and Windows installers are signed.
Older versions are on the Releases page.
Installing on Linux
The deb installs with apt — it pulls in the dependencies and adds GenOffice to the applications menu:
sudo apt install ./genoffice_<version>_amd64.debOn Fedora / RHEL-family / openSUSE, install the rpm instead:
sudo dnf install ./genoffice-<version>.x86_64.rpm # Fedora / RHEL family
sudo zypper install ./genoffice-<version>.x86_64.rpm # openSUSEThe AppImage runs in place: install the FUSE 2 runtime
(sudo apt install libfuse2; on Ubuntu 24.04 the package is libfuse2t64),
make the file executable, then run it:
chmod +x GenOffice-<version>.AppImage
./GenOffice-<version>.AppImageSeven 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.
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 + rpmThe 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.
GenOffice is in active development and your feedback shapes it.
- Report a bug or request a feature in GitHub Issues.
- Join the GenOffice group chat on GenTeam to talk to the team and other users.
- Star the repo if GenOffice is useful to you — it is the best way to support the project.
Is GenOffice free?
Yes. GenOffice is free and open-source under the Apache-2.0 license — no trial, no paid tier for the apps themselves.
Can GenOffice open Microsoft Word, Excel and PowerPoint files?
Yes. GenOffice opens and saves native .docx, .xlsx and .pptx files.
Saving is byte-preserving: parts of the file you didn't touch are written
back byte-for-byte, so documents keep working in Microsoft Office.
Does GenOffice work offline?
Document editing is fully local — files never leave your machine to be opened, edited, saved or converted. The AI features (agents, search, image tools) need a network connection, with either a Genspark sign-in or your own model API key.
Can GenOffice edit PDF files?
Yes — real PDF text and image editing that rewrites the page content stream with the original fonts preserved, not cover-up annotations.
Can GenOffice convert PDF to Word, Excel or PowerPoint?
Yes — entirely on-device: PDFium character-level extraction plus geometry-based layout analysis, no cloud service, no upload. Scanned pages are covered too: on macOS and Windows the system OCR reads them, so they convert to editable text rather than a page image.
Can I use my own AI model or API key?
Yes. Besides the keyless Genspark sign-in, GenOffice supports bring your own key for Claude, OpenAI, Gemini, DeepSeek, Kimi, GLM, Qwen, Doubao, MiniMax, Grok, Mistral, OpenRouter, Requesty and OpenCode Zen/Go, plus any OpenAI-compatible endpoint — including local model servers. Search, image generation and image/video analysis take their own keys under Settings → AI Media & Search.
Can GenOffice convert HTML to Word?
Yes — Export as Word in the HTML app produces a native, editable .docx
entirely on-device. The page is rendered in the built-in Chromium and reduced
to real Word structures: headings, paragraphs, lists, tables, cards, KPI rows,
form fields and page backgrounds; only visuals with no Word counterpart
(charts, icons, decorated boxes) are embedded as pictures.
Does GenOffice collect any data?
Official packaged builds send limited usage analytics by default, and you can disable reporting at any time under Settings → General. Analytics never sends document content, file names, file paths, account identity or email addresses. See GenOffice Privacy for the complete event and data disclosures.
See SECURITY.md for the process security posture (renderer sandboxing, IPC validation, external-link gating) and the threat models for AI-generated content.
GenOffice would not be possible without these open-source projects:
- Electron — the desktop runtime for every app.
- Univer (Apache-2.0) — the spreadsheet UI core that Sheets extends.
- PDFium (BSD-3-Clause, bundled via @embedpdf/pdfium) — the content-stream engine behind true PDF text and image editing.
- pdf.js (Apache-2.0) and pdf-lib (MIT) — PDF rendering and document assembly.
- Tiptap / ProseMirror — the block editors in Docs and Markdown.
- CodeMirror (MIT) — the source editor in HTML.
- Konva — canvas rendering for Slides and Sheets charts.
- HarfBuzz (wasm) — text-shaping metrics for complex scripts.
- calamine and IronCalc — the read and calc layers of the Rust xlsx sidecar.
- libeot (MPL-2.0) — the MicroType Express decoder for embedded PowerPoint fonts, ported to TypeScript.
- React (MIT) — the UI layer of every app.
- Mermaid (MIT) and KaTeX (MIT) — diagrams and math in Markdown and Docs.
- opentype.js (MIT) — font parsing for metrics and glyph lookup.
- JSZip (MIT) and fast-xml-parser (MIT) — the OOXML container and XML layers.
- Fluent UI System Icons (MIT) — the icon set across the ribbons.
- electron-updater (MIT) — in-app updates.
- 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.
GenOffice is licensed under the Apache License 2.0, with one
exception: the ee/ directory is reserved for future enterprise modules and
is covered by the GenOffice Enterprise License.
The GenOffice and Genspark names and logos are trademarks of Mainfunc, Inc. The Apache-2.0 license does not grant permission to use them (see section 6); forks should use their own branding.