HTML Online ViewerIntroduction to Web Development
01A beginner-friendly lesson
CREATE REAL POWERPOINT FILES WITH JAVASCRIPT
Build a real editable PowerPoint file with a guided slide maker, generate browser-compatible PptxGenJS code, or run trusted presentation JavaScript and download the finished PPTX.
WHY USE IT
Describe slides in simple blocks and the guided builder writes compatible PptxGenJS JavaScript for you.
The result is a real PowerPoint file with editable text and shapes—not a renamed JavaScript file or an HTML slideshow.
Presentation creation happens on your device. You do not need Node.js, an account or a server upload for text-and-shape decks.
HOW IT WORKS
Use the guided builder, prepare an AI prompt, or switch to the PptxGenJS code editor.
A deck script creates a PptxGenJS presentation, adds slides and ends with return pptx.
Create the file locally, then open the downloaded PPTX in PowerPoint, LibreOffice Impress or compatible software.
THE REQUIRED SCRIPT FORMAT
Begin with const pptx = new PptxGenJS(); and set a layout such as LAYOUT_WIDE or LAYOUT_4X3.
Call pptx.addSlide(), then add editable text, shapes, tables, charts or images with PptxGenJS methods.
Finish with return pptx;. Do not import packages or call writeFile—the browser tool performs the final export for you.
COMMON QUESTIONS
No. Ordinary JavaScript has no slide information. The code must create a presentation with PptxGenJS, add slides and return the pptx object. This page can generate that required structure for you.
No. PptxGenJS supports modern browsers, so this tool can assemble and download the PowerPoint file on your device. Node.js is useful for automation and server jobs, but it is not required here.
PowerPoint text and shapes remain sharp because they are editable objects. Image clarity depends mainly on the resolution of the image supplied to the script. The smaller-file option compresses the PPTX package without deliberately lowering visual quality.
Yes. Use the AI Prompt Maker mode to create a precise prompt, give it to your preferred model, then paste the returned JavaScript into Code Mode. The prompt tells the model which browser-safe contract to follow.
Only run code you trust. Code Mode executes in an isolated browser worker without access to the page DOM or its storage, but copied code should still be reviewed before you run it.