WHAT IS IT?
PptxGenJS is a JavaScript/TypeScript library that builds PowerPoint (.pptx) files entirely programmatically, with no Office install or proprietary tooling required. The output opens cleanly in PowerPoint, Keynote, LibreOffice and Google Slides. It runs in the browser, in Node.js, and even in serverless environments.
WHY IS IT INTERESTING?
- Zero Office dependency: no license, no COM automation, no Windows server needed to produce a clean PPTX.
- Rich and fluent API: slides, text, shapes, tables, charts, images, SVGs, animated GIFs, YouTube embeds, RTL and Asian fonts are all covered.
- Custom Slide Masters: define your brand template once and apply it across every slide for perfect visual consistency.
- Multi-environment: runs in the browser, in Node.js, inside React/Angular/Vite/Electron, and even in Edge Functions or Lambda.
- Multiple outputs: export as file, base64, Blob, Buffer or Node stream to fit any pipeline (direct download, S3 upload, email attachment, etc.).
USE CASES
- Exportable dashboards turning analytics into automated client-facing PPTX reports.
- Server-side generation of data-driven presentations (sales, marketing, BI).
- Converting HTML tables from a web app into downloadable, formatted slides.
- Internal tools that produce branded decks from corporate templates.
- Automated reporting pipelines wired to a database or an API.