@office-open/docx

Generate, parse, and patch .docx documents with a declarative TypeScript API. Works in Node.js and browsers.

Features

• 📄 Document Generation — Create Word documents with sections, headers, footers, and page numbers
• ✍️ Paragraphs & Text — Rich text support with bold, italic, underline, strikethrough, and more
• 📊 Tables — Full table support with merged cells, borders, and styles
• 🖼️ Images — Inline and floating images with sizing, positioning, and wrapping
• 🔗 Hyperlinks — External and internal hyperlinks with custom styling
• 📑 Headers & Footers — First, last, even/odd page headers and footers
• 📋 Lists — Numbered and bulleted lists with multiple levels and custom formats
• 🎨 Styles — Paragraph, character, and table styles with inheritance
• 📖 Table of Contents — Auto-generated table of contents with custom styling
• 📝 Footnotes & Endnotes — Comprehensive footnote and endnote support
• 📈 Charts — Bar, line, pie, area, and scatter charts with customization
• 🔢 Math Equations — Full mathematical equation support via Office MathML (OMML)
• 🧩 SmartArt — Built-in SmartArt graphic generation
• 📚 Bibliography — Source management and citation support
• 💬 Comments — Document comments with author and date tracking
• 📝 Track Revisions — Insertions, deletions, and formatting changes
• 📋 Content Controls — Structured document tags (SDT) for form-like documents
• 📦 Text Boxes — Floating text boxes with content and styling
• ☑️ Checkboxes — Form checkbox support in documents
• 🖌️ DrawingML — Shapes with fills, shadows, effects, and transformations
• 🔤 Custom Fonts — Font embedding and custom font tables
• 🔧 Template Patching — Patch existing DOCX templates via placeholder replacement
• ⚙️ Settings — Comprehensive document settings and compatibility options

Installation

# pnpm
pnpm add @office-open/docx

# npm
npm install @office-open/docx

# yarn
yarn add @office-open/docx

# bun
bun add @office-open/docx

Quick Start

import { generateDocument } from "@office-open/docx";
import { writeFileSync } from "node:fs";

const buffer = await generateDocument({
  sections: [
    {
      children: [
        {
          paragraph: {
            children: ["Hello World", { text: " - Bold text", bold: true }],
          },
        },
      ],
    },
  ],
});

writeFileSync("My Document.docx", buffer);

Examples

Check the demo folder for 100+ working examples covering every feature.

Benchmark

Performance vs original docx (9.6.1) package (higher ops/s is better, Windows 11 / Node 24).

Default = XML DEFLATE level 1 (SuperFast); media is split by type, matching MS Office Word — already-compressed formats (PNG/JPEG/GIF) are STOREd, the rest (EMF/WMF/BMP/TIFF/…) use DEFLATE level 6 / Normal (verified on a real MS Office file). All STORE = no compression ({ compression: { xml: 0, media: 0 } }). docx (async only) always uses DEFLATE for ALL entries including images (via JSZip, hardcoded, no STORE option).

// Default (matches MS Office)
await generateDocument(options);
// All STORE (no compression)
await generateDocument(options, { compression: { xml: 0, media: 0 } });

Create + toBuffer (end-to-end)

| Scenario | Default sync | Default async | All STORE sync | All STORE async | docx | | ------------------------------ | -----------: | ------------: | -------------: | --------------: | ---------: | | Simple (2p + 1 img) | 915 ops/s | 584 ops/s | 2,454 ops/s | 2,545 ops/s | 86.3 ops/s | | Styled paragraphs (20) + 1 img | 935 ops/s | 626 ops/s | 2,721 ops/s | 2,522 ops/s | 90.1 ops/s | | Table (10x5) | 1,164 ops/s | 659 ops/s | 2,743 ops/s | 2,821 ops/s | 227 ops/s | | Full featured + 2 imgs | 753 ops/s | 527 ops/s | 1,601 ops/s | 1,615 ops/s | 56.6 ops/s |

Large Files — Create + toBuffer

| Scenario | Default sync | Default async | All STORE sync | All STORE async | docx | | ------------------------------ | -----------: | ------------: | -------------: | --------------: | ---------: | | 2000 paragraphs + 20 images | 85.4 ops/s | 77.1 ops/s | 90.5 ops/s | 86.4 ops/s | 2.95 ops/s | | 200x10 table | 194 ops/s | 175 ops/s | 220 ops/s | 222 ops/s | 33.9 ops/s | | 20 sections x 100p + 40 images | 80.5 ops/s | 66.2 ops/s | 89.7 ops/s | 91.7 ops/s | 1.80 ops/s |

Large File (~100MB) — Mixed Content

500 styled paragraphs + 38 mixed-size images (1-5MB, 100MB total) + 50x10 table.

| Scenario | Default sync | Default async | All STORE sync | All STORE async | docx | | ------------------------ | -----------: | ------------: | -------------: | --------------: | ---------: | | Mixed (500p+38img+50x10) | 23.7 ops/s | 21.8 ops/s | 23.4 ops/s | 24.5 ops/s | 0.30 ops/s |

License

• MIT © Demo Macro