wordcraft
An open-source, clean-room reimplementation of Microsoft Word in pure Rust
The Lens
By Erik Loyd, SaaS CEO and former COO/CFO of an AWS Premier Partner.
Updated Oct 2026
WordCraft is a Microsoft Word lookalike written from scratch in Rust: the ribbon, styles, track changes, tables of contents, citations and mail merge, and it opens and saves .docx. It runs on Mac, Windows, Linux, FreeBSD and in the browser, free under MIT or Apache 2.0 with no paid tier.
Nothing to host. Grab a signed installer and go. It also imports old .doc files, exports PDF with real selectable text, and ships a command line tool plus an MCP server, so an AI agent can convert, inspect or edit documents with the same commands the ribbon uses.
Solo writers who just need to open and edit a .docx without a Microsoft 365 subscription can try it today. Small teams swapping contracts with Word users: not yet. The team's own roadmap rates it about 60% ready for real work, and its .docx support has never been tested against a corpus of real-world files. No VBA, no real-time co-authoring. LibreOffice Writer and ONLYOFFICE are the mature free picks.
The catch: it's barely a week old and written largely with Claude. Expect crashes, Windows startup bugs and layout that shifts when a file goes back to Word. Keep the original.
Free vs Self-Hosted vs Paid
fully freeFree: Everything. Dual licensed MIT OR Apache-2.0, no account, no paid tier, and spelling and grammar run offline. The ArtCraft logos are trademarked and must be removed from modified builds you distribute.
Self-hosted: Nothing to host. Desktop builds for macOS (universal DMG, signed and notarized), Windows (x64, arm64 and 32-bit MSI or portable zip, code-signed), Linux (AppImage, deb, rpm, Flatpak, tarball on x86_64 and aarch64, plus riscv64) and FreeBSD, plus a WebAssembly build you can put on any static web server. Command line tool and MCP server included.
Paid: None for WordCraft. The same team sells ArtCraft, a separate AI image and video studio on monthly credits; it unlocks nothing in WordCraft. Versus Microsoft 365, the maintainers estimate WordCraft is about 60% of the way to replacing Word for real work (about 55% for a typical professional's weekly work), so it saves you the subscription only if your documents are simple.
Free under MIT or Apache 2.0 with no paid tier. Fine for opening and editing simple .docx files; keep Word or LibreOffice for documents you exchange with clients until it leaves alpha.
What to do by team size
- Solo
- free; good for opening and editing .docx without a Microsoft 365 subscription
- Small team
- free to try, but keep Word or LibreOffice for files you trade with clients
- Medium team
- Not ready: no co-authoring, no VBA, .docx untested on real-world files
- Large team
- Not ready for managed fleets or macro-based templates; revisit after beta
Get tools like this every Wednesday
One featured tool, three on the radar. No fluff.
A low score is not a verdict on quality. Young and niche tools start low by design. How we calculate scores
Trust Signals
License: MIT OR Apache-2.0
Use freely under either license; the Apache side adds a patent grant. ArtCraft logos must be removed from modified builds.
Commercial use: ✓ Yes
About
- Owner
- ArtCraft (Organization)
- Stars
- 15,591
- Forks
- 4,226
Also by ArtCraft
An open-source, clean-room reimplementation of Avid Pro Tools in pure Rust
Presentations and slide shows: an open-source, clean-room reimplementation of Microsoft PowerPoint i
CADCraft: computer-aided design and drafting — an open-source, clean-room AutoCAD-style app in pure
Explore Further
More tools in the directory
openclaw
Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞
392.8k ★everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
286.7k ★DeepSeek Harness
DeepSeek Harness: Everything is a Plugin.
258.6k ★