WordCraft
Writing and document design; an open-source, clean-room reimplementation of Microsoft Word, rebuilt in pure Rust.
A fast, open-source word processor with the Word workflow you already know: the ribbon, styles,
tables, track changes, references and mail merge. It reads and writes .docx, runs natively on
macOS, Windows, Linux and BSD, and in the browser via WebAssembly.
By the ArtCraft team.
WordCraft on getartcraft.com · ArtCraft · All Crafting Apps
The Open Studio Handbook, WordCraft's built-in sample: the ribbon, live Styles gallery, rulers and the Navigation pane.
[!NOTE] ArtCraft is a community of artists from all walks of life. Painters, photographers, filmmakers, illustrators, designers, animators, hobbyists, and people who picked up a pencil last week. If you make things, you're one of us. Come say hi on Discord.
A tour · Why WordCraft · What works today · Quick start · For agents · Architecture · Roadmap · The Crafting Apps · License and credits
A tour
Every screenshot below is WordCraft itself, rendered offscreen by its own UI test harness
(cargo run -p wordcraft-ui-egui --example ui_shot).
 Review. Track changes, comment balloons in the margin, accept and reject, spelling and grammar as you type. |  References. Tables of contents, footnotes, citations in APA, MLA, Chicago or IEEE, index and captions. |
 Design. Themes, style sets, paragraph spacing, watermarks, page colour and borders. |  Dark mode with formatting marks, and the Insert tab: tables, pictures, shapes, links, headers, footers, fields and symbols. |
 Layout. Drop caps, text wrapping around pictures and shapes, automatic hyphenation, line numbers and page borders. | |
 File. Start from a template, open recent documents, edit properties, export to PDF and other formats. | |
Why WordCraft
- Familiar. Word's ribbon tabs, groups, shortcuts and behaviour: Enter continues a list, Tab demotes it, Ctrl/⌘+B bolds the word under the caret, the Styles gallery previews styles live, F4 repeats, F7 checks spelling, F8 extends the selection.
- Your files. Opens and saves .docx (OOXML), and also .odt, .rtf, .html, .md, .txt; exports PDF with real, selectable text, links and bookmarks.
- Fast. Paragraph layout is cached, so typing in a 188-page document re-lays it out in about 1.4 ms; pages render on demand.
- Everywhere. One Rust codebase for macOS, Windows, Linux, BSD and the web. No Electron, no Tauri: native egui on the GPU.
- Built for agents. Every action is a command with an id. The same 389 commands drive the ribbon, keyboard shortcuts, the command search, a command-line tool, a JSON control channel and an MCP server.
- Private. Spelling, grammar and everything else work offline.
- Open. MIT OR Apache-2.0. Clean-room: built from public specifications and observation, with every asset original or openly licensed.
What works today
| Area | Highlights |
|---|---|
| Writing | Fast typing with IME, smart quotes, AutoCorrect, list autoformat (* , 1. ), dashes; word, sentence, paragraph selection; drag-select; clipboard with formatting; undo/redo; find and replace with regex |
| Formatting | Fonts, sizes, bold/italic/underline styles, strike, sub/superscript, caps, highlight, colours, character spacing, Format Painter, Change Case, Clear Formatting |
| Paragraphs | Alignment, indents (draggable on the ruler), spacing, line spacing, tabs with leaders, borders, shading, keep with next, widow/orphan control |
| Styles | Built-in style set, live gallery, Styles pane, create/modify/update styles, style sets, themes |
| Lists | Bullets, numbering, multilevel, restart, set value, custom formats |
| Tables | Insert by grid, merge/split, styles with banded rows, borders, shading, header rows repeated across pages, rows that split across pages, sort, formulas, text ↔ table |
| Pages | Margins, orientation, size, columns, page/column/section breaks, headers and footers (first page, odd/even), page numbers, watermark, page borders, line numbers, vertical alignment, drop caps, automatic hyphenation |
| Objects | Pictures (resize, crop, recolour, brightness/contrast, transparency, background removal, picture styles, rotate), shapes, text boxes, floating position with text wrapping (square, top and bottom, behind or in front of text) |
| References | Table of contents, footnotes and endnotes, citations and bibliography (APA, MLA, Chicago, IEEE), captions, table of figures, cross-references, index, table of authorities |
| Review | Spelling and grammar with suggestions, thesaurus, word count, comments in margin balloons or a pane, track changes, accept/reject, compare documents, restrict editing, accessibility checker, document inspector |
| Mailings | Mail merge from CSV, merge fields, address block, greeting line, rules, preview, finish to a document; envelopes and labels |
| View | Print layout, web layout, draft, read mode, focus, zoom, one/multiple pages, page width, Navigation pane, rulers, gridlines, dark mode |
| Files | .docx read/write (opens in Word), PDF export, .odt, .rtf, .html, .md, .txt import/export, page images |
The honest picture, area by area, is in ROADMAP.md and the generated feature parity report.
Quick start
git clone https://github.com/storytold/wordcraft
cd wordcraft
cargo run --release -p wordcraft -- --sample # the desktop app with the sample document
cargo run --release -p wordcraft -- report.docx # open a documentCommand line:
wordcraft-cli convert report.docx report.pdf # docx, pdf, odt, rtf, html, md, txt, png
wordcraft-cli text report.docx # plain text
wordcraft-cli inspect report.docx # structure as JSON
wordcraft-cli run --template sample \
--cmd 'select.text={"text":"Membership"}' --cmd format.bold --save out.docxWeb: cd apps/wordcraft-web && trunk serve, then open http://127.0.0.1:8771/?sample.
For agents: CLI and MCP
WordCraft was designed to be driven by people and by AI agents.
claude mcp add wordcraft -- wordcraft-cli mcp # headless documents
wordcraft --control 7981 & # or drive the running app…
claude mcp add wordcraft-app -- wordcraft-cli mcp --connect 127.0.0.1:7981Tools include list_commands, execute, batch, type_text, select_text, inspect_document,
render_page, save_document, and, with a running app, screenshot, click and key. Agents
can check their work through inspect_document without screenshots. See docs/mcp.md
and the control protocol. Macros record any sequence of commands and
play it back (tools.recordMacro, tools.macros).
Architecture
| Layer | Crate | Job |
|---|---|---|
| L0 | wordcraft-geom | units and measurements |
| L1 | wordcraft-doc, wordcraft-fonts, wordcraft-proof | document model and editing; fonts and shaping; spelling, grammar, hyphenation |
| L2 | wordcraft-layout, wordcraft-docx, wordcraft-formats | line breaking, pagination, tables, notes, hit testing; OOXML; ODT/RTF/HTML/Markdown/TXT |
| L3 | wordcraft-render, wordcraft-pdf | rasteriser (vello_cpu); PDF (krilla) |
| L4 | wordcraft-engine | session, undo, 389 commands, Word feature catalog |
| L5 | wordcraft-mcp | MCP server |
| L6 | wordcraft-ui-egui | the Word-style front end (swappable) |
| apps | wordcraft, wordcraft-cli, wordcraft-web | desktop, command line, browser |
cargo xtask ci runs formatting, clippy, ~250 tests, the asset-attribution check, the layering
check and the wasm build. Contributor and agent instructions: AGENTS.md.
Roadmap
WordCraft covers 87% of Word's ribbon features with commands today; counting depth and fidelity, we estimate about 62% of real feature parity. An alpha for everyday writing is close: the remaining work is mostly testing against real-world .docx files, native printing and the first signed builds. Charts, SmartArt, the equation editor and the Draw tab come after. Details and estimates: ROADMAP.md.
The Crafting Apps
WordCraft is one of the Crafting Apps: free, open-source creative tools from the ArtCraft team, each written from scratch in Rust and each able to stand on its own.
| App | What it's for | Code | Learn more | |
|---|---|---|---|---|
 | PhotoCraft | Image editing: layers, masks, type and real PSD files | GitHub | Website |
 | VectorCraft | Vector illustration | GitHub | Website |
 | FilmCraft | Video editing, color and sound | GitHub | Website |
 | LightCraft | Photo library and raw development | GitHub | Website |
 | PdfCraft | Reading, organizing and protecting PDFs | GitHub | Website |
 | EffectCraft | Motion graphics and visual effects | GitHub | Website |
 | DesignCraft | Page layout and publishing | GitHub | Website |
 | WordCraft | Writing and document design · you are here | GitHub | Website |
And ArtCraft itself, our AI image and video studio for artists who want real control.
Come make things with us
Our Discord is where artists of every kind hang out: people who paint, shoot, draw, cut film, set type, and people still figuring out what they like to make. Share what you're working on, ask for help, tell us what's broken, or tell us what you wish these tools could do. Whatever your medium and however long you've been at it, you're welcome here.
discord.gg/artcraft · getartcraft.com · The Crafting Apps · WordCraft
License and credits
WordCraft is dual-licensed under MIT or Apache-2.0, at your option. Copyright (c) 2026 ArtCraft Team and the WordCraft contributors. Required notices are in NOTICE.
Bundled fonts, icons, images and other assets keep their own open licenses; each one is listed with its author, source and license in ATTRIBUTION.md.
The spelling dictionary and hyphenation come from Grady Ward's public-domain Moby Hyphenator II word list. The sample documents and templates are original text written for WordCraft.
The ArtCraft name, wordmark and logos in docs/brand/ are trademarks of the
ArtCraft Team and are not covered by this license. They may be used only unmodified, and only as
part of this repository and WordCraft, under docs/brand/LICENSE-brand.txt.
Forks and modified versions must remove them.
Microsoft and Microsoft Word are trademarks of the Microsoft group of companies. Adobe, Photoshop, Illustrator, Premiere Pro, Lightroom, Acrobat, After Effects and InDesign are trademarks or registered trademarks of Adobe Inc. in the United States and/or other countries. WordCraft is an independent, open-source project and is not affiliated with, sponsored by or endorsed by Microsoft Corporation or Adobe Inc.; these names are used only to describe the workflows it is compatible with.
Made by the ArtCraft team and community.