ArtCraft, the Rust-focused developer known for clean-room reimplementations of creative software, has added office applications to its lineup. Its new WordCraft is a Microsoft Word alternative that The Register tested on an Arm-based Surface and found to work well. The company says the application is at pre-alpha, with an estimated 62 percent of real feature parity, and that an alpha for everyday writing is close.

WordCraft resembles Word but uses different buttons and icons. ArtCraft says it was built from public specifications and observation, with original or openly licensed assets, and leans heavily on Claude for development. The code is dual-licensed under MIT or Apache 2.0, and spelling data comes from Grady Ward's public-domain Moby Hyphenator II word list.

However, the project is not ready for production. Testing DOCX compatibility against real-world files has not begun, and charts, SmartArt, and embedded OLE objects are dropped. The Document Foundation declined to comment, Microsoft acknowledged an inquiry, and Adobe declined to comment on similar projects targeting its creative apps.

Legal questions remain. Neil Brown of decoded.legal told The Register that clean-room arguments may be non-infringing, but litigation is possible when the aggrieved party has deep pockets. Whether ArtCraft's AI-assisted reimplementations can deliver reliable replacements is still an open question.