Showoff is a Sinatra web app that reads simple configuration files for a presentation. It is sort of like a Keynote web app engine. I am using it to do all my talks in 2010, because I have a deep hatred in my heart for Keynote and yet it is by far the best in the field. The idea is t...

Slide Show (S9) - Write Your Slides in Plain Text w/ Formatting Conventions - A Free Web Alternative to PowerPoint and Keynote

Create slides with Markdown

Create live-coding HTML5-based presentations and workshops

No need for Keynote or PowerPoint anymore, use a browser to give presentations

S6 Blank - Slideshow templates using HTML 5, CSS 3 'n' JavaScript 2017+ w/ Bespoke.js-compatible "microkernel"