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BetterOffice

The office engine for the agent era: OOXML-native docx, xlsx & pptx on a Rust core, running anywhere, including the browser via WASM. Open source and used by OpenCode.

Jul 2026 – Present•active•betteroffice.dev →•
RustWASMOOXMLOpen Source

The office engine for the agent era.

What it is

  • OOXML-native engine for docx, xlsx & pptx: no format conversion, no fidelity loss
  • Rust core, built to be driven by AI agents
  • Compiles to WASM, so it runs anywhere, including directly in the browser
  • Editing, rendering and real-time collaboration

Open source

  • Fully open source on GitHub
  • Ships to npm, crates.io and PyPI
  • Used by OpenCode, among others