Rather than using reveal.js, perhaps consider the GUI version at slides.com?<p>Beamer is a great tool as well, there are some really nice themes for it. My favourite is Metropolis: <a href="https://github.com/matze/mtheme" rel="nofollow">https://github.com/matze/mtheme</a>
The markup is Latex, so you'll need a latex toolchain for that.
Please check <a href="https://mark.show/" rel="nofollow">https://mark.show/</a><p>You can:<p>Write markdown in editor<p>or<p>Upload a markdown file<p>or<p>Import direct from URL of markdown file.<p>PS: I am creator of the service.
For simpler ones with markdown I found marp very easy to work with : <a href="https://github.com/yhatt/marp" rel="nofollow">https://github.com/yhatt/marp</a>