Microsoft Office clones launched by developer using AI

The New Office Alternatives

If you're tired of coughing up nearly $100 a year for Microsoft 365, a new dev might have just saved your bags. Brandon Thomas, the engineer behind the recent ArtCraft project, just dropped open-source clones of Word, Excel, and PowerPoint on GitHub. These apps—WordCraft, GridCraft, and DeckCraft—were built using Anthropic's Claude and are designed to be a total vibe check for the legacy software giant.

Built in the Rust programming language, these tools run natively on Windows, macOS, Linux, and even inside your browser. Because they're open-source, the code is public and free to modify. Thomas says these are "clean-room" rebuilds, meaning he didn't copy Microsoft’s actual code, but instead mapped out how the software functions based on public specs—a legal flex inspired by the 1980s Compaq-IBM clones.

Can They Actually Replace Your Workflow?

Real talk: these are still in the alpha stage, so don't expect perfection yet. WordCraft supports 88% of Word's ribbon commands and handles files like .docx, but the devs only rate it at about 60% ready for heavy-duty work. It’s snappy and small (only 91Mb), but it still needs to iron out bugs before you trust it with your final thesis or work reports.

GridCraft, the Excel replacement, is highkey impressive, handling over 500 worksheet functions. However, it might still struggle with complex corporate budget sheets. Meanwhile, DeckCraft is lagging behind slightly, missing its first official alpha milestone but still offering solid .pptx compatibility.

The AI Agent Flex

A major W here is the integration with Model Context Protocol (MCP). Every button in these apps can be triggered by an AI agent, meaning you could eventually tell Claude to build your charts or format a report without even touching your mouse. It’s giving next-level efficiency, though Thomas has a history of promising big timelines he doesn't always hit.

Why it matters

Historically, alternatives like LibreOffice took massive communities years to build. Thomas is moving at light speed by leveraging AI, proving that the barrier to entry for building complex software is dropping fast. While these apps aren't ready to fully kill off Microsoft Office yet, the fact that they exist for free is a major power move for anyone trying to cut down on monthly overhead.