pptxgenjs vs docx-templates vs officegen
Document and Presentation Generation Libraries Comparison
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What's Document and Presentation Generation Libraries?

These libraries are designed to facilitate the creation of Microsoft Word documents and PowerPoint presentations programmatically in Node.js. They provide developers with tools to generate documents and presentations dynamically, allowing for the automation of report generation, template filling, and content management. Each library has its own strengths and use cases, making them suitable for different scenarios in web development.

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pptxgenjs102,9883,5832.6 MB23919 days agoMIT
docx-templates39,2169791.23 MB622 months agoMIT
officegen12,7792,6872.73 MB200-MIT
Feature Comparison: pptxgenjs vs docx-templates vs officegen

Template Support

  • pptxgenjs:

    pptxgenjs supports creating PowerPoint presentations from scratch, allowing for the addition of slides, text, images, and shapes. While it does not use templates in the same way as docx-templates, it provides extensive customization options to design slides according to specific needs.

  • docx-templates:

    docx-templates excels in using existing Word document templates. It allows developers to define placeholders in a Word document, which can then be replaced with dynamic data during generation. This makes it easy to maintain consistent formatting and styles across generated documents.

  • officegen:

    officegen does not focus on template support but rather on creating documents and presentations from scratch. It provides a programmatic way to define the structure and content of the documents, which can be more flexible but requires more effort to ensure consistent styling.

Ease of Use

  • pptxgenjs:

    pptxgenjs is designed to be intuitive for creating presentations. Its API is straightforward, allowing developers to add slides and content quickly. This makes it accessible for those who want to create presentations without extensive setup.

  • docx-templates:

    docx-templates is user-friendly, especially for those familiar with Word document structures. Its syntax is straightforward, making it easy to replace placeholders with actual data, which speeds up the development process for document generation.

  • officegen:

    officegen has a moderate learning curve as it requires understanding its API for creating documents and presentations. While it offers flexibility, developers may need to invest time in learning how to effectively use its features.

Output Formats

  • pptxgenjs:

    pptxgenjs focuses solely on generating .pptx files. This specialization allows it to provide advanced features tailored for PowerPoint presentations, making it ideal for applications that need to create engaging slide decks.

  • docx-templates:

    docx-templates generates .docx files, which are widely used and compatible with Microsoft Word and other word processors. This ensures that the output can be easily shared and edited by end-users.

  • officegen:

    officegen can generate both .docx and .pptx files, providing versatility for applications that need to create both types of documents. This dual capability makes it a good choice for projects requiring multiple document formats.

Customization Options

  • pptxgenjs:

    pptxgenjs offers extensive customization features for presentations, including the ability to add animations, transitions, and multimedia elements. This makes it suitable for creating visually rich presentations that require more than just text and images.

  • docx-templates:

    docx-templates offers limited customization beyond template filling. It is primarily focused on populating templates with data rather than extensive document design, which may be a limitation for some use cases.

  • officegen:

    officegen provides a wide range of customization options for both Word documents and PowerPoint presentations. Developers can define styles, layouts, and content programmatically, allowing for detailed control over the output.

Community and Support

  • pptxgenjs:

    pptxgenjs has a growing community and is actively maintained. It offers comprehensive documentation and examples, making it easier for developers to learn and implement its features effectively.

  • docx-templates:

    docx-templates has a smaller community compared to the other libraries, which may result in limited resources and examples. However, it is well-documented, making it easier to get started and find help when needed.

  • officegen:

    officegen has a moderate-sized community with decent documentation and examples available. This can help developers find solutions to common issues and share knowledge with others using the library.

How to Choose: pptxgenjs vs docx-templates vs officegen
  • pptxgenjs:

    Opt for pptxgenjs if your primary focus is on creating PowerPoint presentations. This library provides extensive features for designing slides, adding multimedia content, and customizing presentations, making it the best choice for applications that need to generate engaging and visually appealing presentations.

  • docx-templates:

    Choose docx-templates if you need to generate Word documents from templates using a simple syntax. It is ideal for scenarios where you want to fill in predefined templates with dynamic data, making it great for generating reports, invoices, or letters.

  • officegen:

    Select officegen if you require a more versatile solution that supports both Word and PowerPoint file generation. It is suitable for creating documents and presentations from scratch, offering a broader range of features for both types of files, making it useful for applications that need to generate both document types.

Similar Npm Packages to pptxgenjs

pptxgenjs is a powerful JavaScript library for creating and manipulating PowerPoint presentations directly in the browser or in Node.js environments. It allows developers to generate dynamic presentations programmatically, making it an excellent choice for applications that require automated report generation, data visualization, or custom presentation creation. With features such as slide creation, text formatting, image embedding, and chart generation, pptxgenjs provides a comprehensive toolkit for building professional presentations.

While pptxgenjs is a robust solution for PowerPoint generation, there are other libraries that offer similar functionalities for document generation. Here are a few alternatives:

  • docx-templates is a library designed for generating Word documents from templates. It allows developers to create dynamic Word files by using placeholders in a predefined template. This library is particularly useful for generating reports, contracts, and other document types that require a structured format. If your project involves creating Word documents rather than PowerPoint presentations, docx-templates is a suitable alternative that simplifies the process of document generation.
  • officegen is another library that enables the creation of Microsoft Office documents, including PowerPoint presentations, Word documents, and Excel spreadsheets. It provides a simple API for generating various types of Office files, making it a versatile choice for developers who need to create multiple document formats. If you are looking for a library that can handle different types of Office documents with a unified approach, officegen is worth considering.

To see how pptxgenjs compares with docx-templates and officegen, check out the comparison: Comparing docx-templates vs officegen vs pptxgenjs.

Similar Npm Packages to docx-templates

docx-templates is a powerful library for generating Microsoft Word documents from templates using JavaScript. It allows developers to create dynamic documents by replacing placeholders in a DOCX template with actual data. This can be particularly useful for generating reports, invoices, contracts, and other documents that require a consistent format. While docx-templates provides a robust solution for document generation, there are several alternatives in the ecosystem that also offer similar functionalities. Here are a few notable options:

  • docxtemplater is a library that enables the creation of DOCX documents from templates. It allows for the replacement of placeholders with dynamic data and supports various features such as images and tables. docxtemplater is particularly well-suited for applications that require complex document generation with a focus on maintaining the original formatting of the template. If your project involves generating documents with intricate layouts, docxtemplater is a solid choice.

  • jszip-utils is a utility library that works in conjunction with JSZip, a library for creating and reading ZIP files in JavaScript. While not specifically a document generation library, jszip-utils provides useful functions for working with ZIP files, which can be beneficial when handling DOCX files since they are essentially ZIP archives containing XML files. If your project requires low-level manipulation of DOCX files or integration with other ZIP-based workflows, jszip-utils can be a valuable tool.

  • mammoth is a library designed to convert DOCX documents into HTML and plain text. While its primary focus is on reading and converting documents rather than generating them, it can be useful for extracting content from DOCX files for further processing or display in web applications. If your use case involves reading and transforming existing Word documents, mammoth is an excellent choice.

  • officegen is a library for generating Microsoft Office documents, including Word, Excel, and PowerPoint files. It provides a straightforward API for creating documents programmatically and supports various features such as adding text, images, and tables. If you need a versatile solution for generating multiple types of Office documents, officegen is a great option.

To explore how docx-templates compares with its alternatives, check out the comparison: Comparing docx-templates vs docxtemplater vs jszip-utils vs mammoth vs officegen.

Similar Npm Packages to officegen

officegen is a versatile npm package that allows developers to generate Microsoft Office documents such as Word and Excel files programmatically. It is particularly useful for applications that require automated report generation, document creation, or data export functionalities. With officegen, you can create documents with various formatting options, making it a powerful tool for generating dynamic content.

While officegen is a robust solution for document generation, there are several alternatives in the npm ecosystem that cater to similar needs:

  • docx is a library specifically designed for creating and manipulating Microsoft Word documents in JavaScript. It provides a straightforward API for generating DOCX files, allowing developers to add text, images, tables, and more. If your primary focus is on creating Word documents with rich formatting and complex structures, docx is an excellent choice.
  • exceljs is a powerful library for creating and manipulating Excel spreadsheets in JavaScript. It supports various Excel features, including formatting, styling, and data validation. If your application requires extensive Excel file manipulation, such as generating reports or exporting data, exceljs is a great option.
  • html-pdf is a library that allows you to convert HTML content into PDF documents. It is particularly useful for applications that need to generate PDFs from web pages or HTML templates. If your project involves creating PDF files from HTML content, html-pdf can simplify the process significantly.
  • pdfkit is a PDF generation library for Node.js that provides a rich set of features for creating complex PDF documents. It allows developers to draw shapes, add images, and manipulate text with great flexibility. If you need to create highly customized PDF files programmatically, pdfkit is a powerful choice.
  • puppeteer is a headless browser automation library that can also be used for generating PDFs from web pages. It allows you to control a Chromium browser programmatically, making it possible to capture web content as PDF files. If you require more control over the rendering process or need to generate PDFs from dynamic web applications, puppeteer is an excellent tool.
  • xlsx is a library for reading and writing Excel files in various formats, including XLSX and CSV. It is particularly useful for applications that need to process spreadsheet data. If your focus is on reading data from Excel files or exporting data in Excel format, xlsx is a solid choice.

To see how these packages compare, check out the comparison: Comparing docx vs exceljs vs html-pdf vs officegen vs pdfkit vs puppeteer vs xlsx.

README for pptxgenjs

PptxGenJS

PptxGenJS Sample Slides

jsdelivr downloads NPM Downloads GitHub Repo stars GitHub License TypeScript defs

🚀 Features

PptxGenJS lets you generate professional PowerPoint presentations in JavaScript - directly from Node, React, Vite, Electron, or even the browser. The library outputs standards-compliant Open Office XML (OOXML) files compatible with:

  • ✅ Microsoft PowerPoint
  • ✅ Apple Keynote
  • ✅ LibreOffice Impress
  • ✅ Google Slides (via import)

Design custom slides, charts, images, tables, and templates programmatically - no PowerPoint install or license required.

Works Everywhere

  • Supports every major modern browser - desktop and mobile
  • Seamlessly integrates with Node.js, React, Angular, Vite, and Electron
  • Compatible with PowerPoint, Keynote, LibreOffice, and other OOXML apps

Full-Featured

  • Create all major slide objects: text, tables, shapes, images, charts, and more
  • Define custom Slide Masters for consistent academic or corporate branding
  • Supports SVGs, animated GIFs, YouTube embeds, RTL text, and Asian fonts

Simple & Powerful

  • Ridiculously easy to use - create a presentation in 4 lines of code
  • Full TypeScript definitions for autocomplete and inline documentation
  • Includes 75+ demo slides covering every feature and usage pattern

Export Your Way

  • Instantly download .pptx files from the browser with proper MIME handling
  • Export as base64, Blob, Buffer, or Node stream
  • Supports compression and advanced output options for production use

HTML to PowerPoint Magic

🌐 Live Demos

Try PptxGenJS right in your browser - no setup required.

Perfect for testing compatibility or learning by example - all demos run 100% in the browser.

📦 Installation

Choose your preferred method to install PptxGenJS:

Quick Install (Node-based)

npm install pptxgenjs

yarn add pptxgenjs

CDN (Browser Usage)

Use the bundled or minified version via jsDelivr:

<script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs/dist/pptxgen.bundle.js"></script>

Includes the sole dependency (JSZip) in one file.

📁 Advanced: Separate Files, Direct Download

Download from GitHub: Latest Release

<script src="PptxGenJS/libs/jszip.min.js"></script>
<script src="PptxGenJS/dist/pptxgen.min.js"></script>

🚀 Universal Compatibility

PptxGenJS works seamlessly in modern web and Node environments, thanks to dual ESM and CJS builds and zero runtime dependencies. Whether you're building a CLI tool, an Electron app, or a web-based presentation builder, the library adapts automatically to your stack.

Supported Platforms

  • Node.js – generate presentations in backend scripts, APIs, or CLI tools
  • React / Angular / Vite / Webpack – just import and go, no config required
  • Electron – build native apps with full filesystem access and PowerPoint output
  • Browser (Vanilla JS) – embed in web apps with direct download support
  • Serverless / Edge Functions – use in AWS Lambda, Vercel, Cloudflare Workers, etc.

Vite, Webpack, and modern bundlers automatically select the right build via the exports field in package.json.

Builds Provided

📖 Documentation

Quick Start Guide

PptxGenJS PowerPoint presentations are created via JavaScript by following 4 basic steps:

Angular/React, ES6, TypeScript

import pptxgen from "pptxgenjs";

// 1. Create a new Presentation
let pres = new pptxgen();

// 2. Add a Slide
let slide = pres.addSlide();

// 3. Add one or more objects (Tables, Shapes, Images, Text and Media) to the Slide
let textboxText = "Hello World from PptxGenJS!";
let textboxOpts = { x: 1, y: 1, color: "363636" };
slide.addText(textboxText, textboxOpts);

// 4. Save the Presentation
pres.writeFile();

Script/Web Browser

// 1. Create a new Presentation
let pres = new PptxGenJS();

// 2. Add a Slide
let slide = pres.addSlide();

// 3. Add one or more objects (Tables, Shapes, Images, Text and Media) to the Slide
let textboxText = "Hello World from PptxGenJS!";
let textboxOpts = { x: 1, y: 1, color: "363636" };
slide.addText(textboxText, textboxOpts);

// 4. Save the Presentation
pres.writeFile();

That's really all there is to it!

💥 HTML-to-PowerPoint Magic

Convert any HTML <table> into fully formatted PowerPoint slides - automatically and effortlessly.

let pptx = new pptxgen();
pptx.tableToSlides("tableElementId");
pptx.writeFile({ fileName: "html2pptx-demo.pptx" });

Perfect for transforming:

  • Dynamic dashboards and data reports
  • Exportable grids in web apps
  • Tabular content from CMS or BI tools

View Full Docs & Live Demo

📚 Full Documentation

Complete API reference, tutorials, and integration guides are available on the official docs site: https://gitbrent.github.io/PptxGenJS

🛠️ Issues / Suggestions

Please file issues or suggestions on the issues page on github, or even better, submit a pull request. Feedback is always welcome!

When reporting issues, please include a code snippet or a link demonstrating the problem. Here is a small jsFiddle that is already configured and uses the latest PptxGenJS code.

🆘 Need Help?

Sometimes implementing a new library can be a difficult task and the slightest mistake will keep something from working. We've all been there!

If you are having issues getting a presentation to generate, check out the code in the demos directory. There are demos for browser, node and, react that contain working examples of every available library feature.

🙏 Contributors

Thank you to everyone for the contributions and suggestions! ❤️

Special Thanks:

PowerPoint shape definitions and some XML code via Officegen Project

🌟 Support the Open Source Community

If you find this library useful, consider contributing to open-source projects, or sharing your knowledge on the open social web. Together, we can build free tools and resources that empower everyone.

@gitbrent@fosstodon.org

📜 License

Copyright © 2015-present Brent Ely

MIT

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