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document

Edit DOCX/XLSX/PPTX in your browser — client-side, no server, works offline (OnlyOffice + WebAssembly)

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node/pnpmmcp-serverdockerpwano-serverlocal-firstwebassemblyofflineexcelprivacyonlyofficeofficeppteditorclient-sidepptxdocumenttypescriptwordpreviewdocxwasmnodeHTML

A browser-based editor for DOCX, XLSX, and PPTX files built on OnlyOffice and WebAssembly, running entirely client-side with no server required. It is packaged as an MCP server and ships a CLAUDE.md, with a toolchain of Node, pnpm, TypeScript, and Docker.

Reach for it when you need to edit or preview Office documents locally and offline without uploading files to a server.

Use it to

  • Edit DOCX files in the browser offline
  • Preview XLSX spreadsheets client-side
  • Modify PPTX presentations without a server
  • Expose document editing as an MCP tool
  • Run a local-first PWA office editor

For Developers wanting private, offline Office document editing

Role
mcp-server
Language
HTML
Licence
AGPL-3.0
Forks
209
Open issues
6
Last push
2026-09-12
Latest release
v0.0.1 · 2025-11-20
topicsdocxonlyofficewebassemblymcp-serverofflineclient-side