Ludus
Slidebean
Microsoft PowerPoint
Prezi
Keynote
Slides
Google Slides
LibreOffice - Impress
Slides Carnival
SlideModel.com
Slidesgo
SlideTeam
SlideEgg
Slidebazaar.com
PoweredTemplate.com
PSlides
Slides Carnival might be a bit more popular than Ludus. We know about 1 link to it since March 2021 and only 1 link to Ludus. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I would go full text-mode (Markdown), Keynote or Ludus[1] [1]: https://ludus.one/. - Source: Hacker News / over 1 year ago
I also recommend slidescarnival.com makes your presentation seem much more professional and since it's just one person running that site, all the templates follow a uniform structure, making it easy to get used to. Source: almost 3 years ago
Slidebean - Presentations that design themselves
SlideModel.com - Create attractive presentations with our professional PowerPoint templates, slide designs, and themes. Use our PPT templates and slide designs to give unique appearance to your presentation.
Microsoft PowerPoint - Microsoft PowerPoint empowers you to create clean slideshow presentations and intricate pitch decks and gives you a powerful presentation maker to tell your story.
Slidesgo - An extensive catalog of free Google Slides themes and PowerPoint templates.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.
SlideTeam - Transform rough sketches, notes into professional PowerPoint presentations.