superdoc

SuperDoc

The document engine for DOCX files.

SuperDoc renders and edits DOCX files in the browser. Built on OOXML — not bolted onto HTML. As you type, you write directly to the XML. Import a document, edit it, export it. Nothing lost.

Features

• Real DOCX, not rich text — Built on OOXML. Real pagination, section breaks, headers/footers, complex tables. Not a contenteditable wrapper with export bolted on.
• Self-hosted — Runs entirely in the browser. Your documents never leave your servers.
• Any framework — React, Vue, Angular, Svelte, vanilla JS. One component, zero lock-in.
• Real-time collaboration — Yjs-based CRDT. Multiplayer editing with comments, tracked changes, and automatic conflict resolution.
• Built for agents — SDK, CLI, and MCP server let LLMs read, edit, and save .docx files programmatically.
• Dual licensed — AGPLv3 for community use. Commercial license for proprietary deployments.

Quick start

npm install superdoc

import 'superdoc/style.css';
import { SuperDoc } from 'superdoc';

const superdoc = new SuperDoc({
  selector: '#superdoc',
  documents: [
    {
      id: 'my-doc-id',
      type: 'docx',
      data: fileObject,
    },
  ],
});

For React, Vue, and other frameworks, see the documentation.

Using an AI coding agent?

npx @superdoc-dev/create              # generates AGENTS.md for your framework
claude mcp add superdoc -- npx @superdoc-dev/mcp   # connect agent to DOCX files

Documentation

docs.superdoc.dev — installation, integration guides, collaboration setup, API reference, and more.

Contributing

Check the issue tracker for open issues, or read the Contributing Guide to get started. Bug reports with reproduction .docx files are especially valuable.

Community

• Discord — Chat with the team and other contributors
• Email — Reach the team directly

License

• Open source: GNU Affero General Public License v3.0
• Commercial: Enterprise License

Created and maintained by Harbour and the SuperDoc community.