WordCraft vs Word: A Rust Word Processor That Opens .docx Without a Subscription

WordCraft vs Word is a comparison of a word processor that arrived in October 2026 against the program most people mean when they say "a Word document". WordCraft's strategy is faithful imitation of the Word workflow, then adding things Word does not offer: offline spelling and grammar, a Markdown import, and a command layer that scripts and AI agents can drive. The project says an alpha for everyday writing is close, which tells you where it stands.

What WordCraft is

WordCraft is part of the ArtCraft family of open-source apps, listed in the Crafting Apps guide. It is MIT or Apache-2.0 licensed, runs natively on macOS, Windows, Linux and BSD and in the browser through WebAssembly, and uses egui on the GPU rather than Electron or Tauri.

Microsoft Word is Microsoft's closed-source word processor, available through the Microsoft 365 subscription and other editions, with desktop, web and mobile versions and deep integration with the rest of Office and Microsoft's cloud services.

What works today

The README organises its feature list by area, and the scope is broad.

Writing and formatting. IME support, smart quotes, AutoCorrect, list autoformat, find and replace with regular expressions, fonts and character spacing, Format Painter, Change Case and the standard text effects.

Paragraphs and styles. Alignment, ruler-draggable indents, tabs with leaders, borders, shading, widow and orphan control, a live styles gallery, style sets and themes.

Tables. Merge and split, banded styles, repeating header rows, rows that split across pages, sorting, formulas and conversion between text and tables.

Pages. Margins, columns, section breaks, headers and footers with first-page and odd-even variants, page numbers, watermarks, line numbers, drop caps and automatic hyphenation.

References. Table of contents, footnotes and endnotes, citations and bibliography in APA, MLA, Chicago and IEEE styles, captions, cross-references, an index and a table of authorities.

Review. Spelling and grammar with suggestions, a thesaurus, comments, track changes with accept and reject, document comparison, restricted editing, an accessibility checker and a document inspector.

Mailings. Mail merge from CSV, merge fields, address block and greeting line, rules, preview, envelopes and labels.

Objects. Pictures with crop, recolour and background removal, shapes, text boxes and floating objects with several text-wrap modes.

Files and compatibility

File handling decides whether any word processor can replace Word, because the real test is a colleague's document. WordCraft reads and writes .docx, which the README says opens in Word, and imports and exports .odt, .rtf, .html, .md and .txt. PDF export keeps real selectable text, links and bookmarks.

The README is specific about the main work still open: testing against real-world .docx files, native printing and the first signed builds. Charts, SmartArt, the equation editor and the Draw tab come later. If your documents use those, plan accordingly.

Speed and design choices

WordCraft caches paragraph layout. The README says typing in a 188-page document re-lays it out in about 1.4 milliseconds on its test machine, which describes the design goal; actual speed varies with hardware.

Every action is a command with an identifier, 389 of them in total. The ribbon, shortcuts, command search, a command-line tool, a JSON control channel and an MCP server all call the same commands. For an organisation that wants a script or an assistant to draft, restyle or export documents, that is a more open surface than most word processors expose.

Privacy is part of the pitch: spelling, grammar and everything else work offline.

Where the numbers stand

The README says WordCraft covers 87 percent of Word's ribbon features with commands, and estimates about 62 percent real feature parity once depth and fidelity are counted. These are self-assessed figures. The first is a count of wired commands, and the second is the maintainers' judgement.

Views, accessibility and inspection

WordCraft lists the standard reading modes: print layout, web layout, draft, read mode and focus, with zoom for one or several pages, page-width zoom, a navigation pane, rulers, gridlines and dark mode. The review tools include an accessibility checker and a document inspector, two features that organisations with compliance requirements often look for first.

Page features go beyond basic writing. The list includes watermarks, page borders, line numbers, vertical alignment, drop caps and automatic hyphenation, along with table of contents, footnotes, endnotes, citations, bibliographies, cross-references and an index. Tables support formulas and sorting, header rows that repeat across pages and rows that split across pages. Pictures can be cropped, recoloured and cleared of their background.

The README stresses that WordCraft is built from public specifications and observation, with assets that are original or openly licensed. The project runs a continuous-integration command for formatting, lints, roughly 250 tests, an asset-attribution check, a layering check and the WebAssembly build.

Testing it on your own documents

The README says the main work before an everyday-writing alpha is testing against real-world .docx files. You can contribute to that by trying it on documents of your own, in this order:

1. A plain letter or essay with a few styles, to check basic fidelity.
2. A report with a table of contents, headings, captions, footnotes and cross-references.
3. A document with tracked changes and comments from a colleague, saved from Word.
4. A table-heavy document, such as a price sheet or schedule, with merged cells and repeating headers.
5. A mail merge from a CSV file with an address block and greeting line.
6. A round trip: edit in WordCraft, save as .docx, reopen in Word and compare.

Documents that use charts, SmartArt, equations or the Draw tab are outside the current scope. Keep the originals, and treat any difference as a bug report the maintainers will want.

A final point on printing: native printing is listed as unfinished work. If you print directly from the word processor every day, export to PDF and print that for now.

Cost and ownership

WordCraft is free and released under MIT or Apache-2.0, and the README says spelling, grammar and everything else work offline. Documents are plain .docx files, so you can always take them elsewhere.

Word's strengths include real-time co-authoring, cloud storage, the equation editor, charts, SmartArt and the add-in store. If your team writes together in one file, those matter more than a lower cost. For a solo writer on a desktop, WordCraft's offline focus and free licence may be a better fit once it reaches its first alpha.

Comparison table

Choosing between them

Stay with Word when documents move between many people with track changes and complex layouts, when you depend on equations, charts and SmartArt, or when your organisation standardises on Microsoft 365.

Try WordCraft if you want a native writing app with Word's muscle memory, no subscription and no cloud dependency, or if you are building a scripted document workflow and want an open engine to run it.

Choose LibreOffice for a complete, mature open-source office suite today, or OnlyOffice and Collabora Online if you need browser-based collaborative editing that you host yourself.

The same team is working on a spreadsheet and a presentation app, covered in GridCraft vs Excel and DeckCraft vs PowerPoint. The free Microsoft Office alternatives guide covers the wider field.