George S. answered 01/06/23
Web Designer with Experience in HTML, CSS, JAVASCRIPT & JQuery and PHP
There are a few open-source options for viewing PowerPoint presentations online:
Apache OpenOffice - This is a suite of open-source office applications that includes a program called "Impress," which can be used to view and edit PowerPoint presentations.
LibreOffice - This is another open-source office suite with a program called "Impress" for viewing and editing PowerPoint presentations.
PPT.js - This open-source JavaScript library can be used to view PowerPoint presentations in a web browser. It is compatible with both PPT and PPTX file formats.
Google Slides - While this is not an open-source solution, Google Slides is a free web-based application that allows you to view and edit PowerPoint presentations online. You can upload your presentations to Google Drive and view them using Google Slides.
I hope these options are helpful.