@eigenpal/docx-js-editor

Open-source WYSIWYG DOCX editor for React. Open, edit, and save .docx files entirely in the browser — no server required. Try the live demo.

We built it for ourselves in eigenpal.com in order to have an editor for .docx files, which serve as AI document workflow output templates for our clients.

Framework Examples

Framework	Example
Vite + React	examples/vite (demo)
Next.js	examples/nextjs
Remix	examples/remix
Astro	examples/astro

Installation

npm install @eigenpal/docx-js-editor

Quick Start

import { useRef } from 'react';
import { DocxEditor, type DocxEditorRef } from '@eigenpal/docx-js-editor';
import '@eigenpal/docx-js-editor/styles.css';

function Editor({ file }: { file: ArrayBuffer }) {
  const editorRef = useRef<DocxEditorRef>(null);

  const handleSave = async () => {
    const buffer = await editorRef.current?.save();
    if (buffer) {
      await fetch('/api/documents/1', { method: 'PUT', body: buffer });
    }
  };

  return (
    <>
      <button onClick={handleSave}>Save</button>
      <DocxEditor ref={editorRef} documentBuffer={file} onChange={() => {}} />
    </>
  );
}

Next.js / SSR: The editor requires the DOM. Use a dynamic import or lazy useEffect load to avoid server-side rendering issues.

Props

Prop	Type	Default	Description
documentBuffer	ArrayBuffer | Uint8Array | Blob | File	—	.docx file contents to load
document	Document	—	Pre-parsed document (alternative to buffer)
readOnly	boolean	false	Read-only preview (hides toolbar, rulers, panel)
showToolbar	boolean	true	Show formatting toolbar
showRuler	boolean	false	Show horizontal & vertical rulers
rulerUnit	'inch' | 'cm'	'inch'	Unit for ruler display
showZoomControl	boolean	true	Show zoom controls in toolbar
showPrintButton	boolean	true	Show print button in toolbar
showPageNumbers	boolean	true	Show page number indicator
enablePageNavigation	boolean	true	Enable interactive page navigation
pageNumberPosition	string	'bottom-center'	Position of page number indicator
showOutline	boolean	false	Show document outline sidebar (table of contents)
showMarginGuides	boolean	false	Show page margin guide boundaries
marginGuideColor	string	'#c0c0c0'	Color for margin guides
initialZoom	number	1.0	Initial zoom level
theme	Theme | null	—	Theme for styling
toolbarExtra	ReactNode	—	Custom toolbar items appended to the toolbar
placeholder	ReactNode	—	Placeholder when no document is loaded
loadingIndicator	ReactNode	—	Custom loading indicator
className	string	—	Additional CSS class name
style	CSSProperties	—	Additional inline styles
onChange	(doc: Document) => void	—	Called on document change
onSave	(buffer: ArrayBuffer) => void	—	Called on save
onError	(error: Error) => void	—	Called on error
onSelectionChange	(state: SelectionState | null) => void	—	Called on selection change
onFontsLoaded	() => void	—	Called when fonts finish loading
onPrint	() => void	—	Called when print is triggered
onCopy	() => void	—	Called when content is copied
onCut	() => void	—	Called when content is cut
onPaste	() => void	—	Called when content is pasted

Ref Methods

const ref = useRef<DocxEditorRef>(null);

await ref.current.save(); // Returns ArrayBuffer of the .docx
ref.current.getDocument(); // Current document object
ref.current.setZoom(1.5); // Set zoom to 150%
ref.current.focus(); // Focus the editor
ref.current.scrollToPage(3); // Scroll to page 3
ref.current.print(); // Print the document

Read-Only Preview

Use readOnly for a preview-only viewer. This disables editing, caret, and selection UI.

<DocxEditor documentBuffer={file} readOnly />

Plugins

Extend the editor with the plugin system. Wrap DocxEditor in a PluginHost and pass plugins that can contribute ProseMirror plugins, side panels, document overlays, and custom CSS:

import { DocxEditor, PluginHost, templatePlugin } from '@eigenpal/docx-js-editor';

function Editor({ file }: { file: ArrayBuffer }) {
  return (
    <PluginHost plugins={[templatePlugin]}>
      <DocxEditor documentBuffer={file} />
    </PluginHost>
  );
}

Plugin	Description
Docxtemplater	Syntax highlighting and annotation panel for docxtemplater tags

See docs/PLUGINS.md for the full plugin API, including how to create custom plugins with panels, overlays, and ProseMirror integrations.

Features

• Full WYSIWYG editing with Microsoft Word fidelity
• Text and paragraph formatting (bold, italic, fonts, colors, alignment, spacing)
• Tables, images, hyperlinks
• Extensible plugin architecture
• Undo/redo, find & replace, keyboard shortcuts
• Print preview
• Zero server dependencies

Development

bun install
bun run dev          # Vite example on localhost:5173
bun run dev:nextjs   # Next.js example on localhost:3000
bun run dev:remix    # Remix example on localhost:3001
bun run dev:astro    # Astro example on localhost:4321

Each example is independently deployable. Copy any examples/<framework>/ directory to start your own project — just npm install and go.

License

MIT