reveal.js is an HTML framework for slide decks. Here is how it compares to Preso - the AI presentation builder that ships on-brand, editable decks from a prompt.
reveal.js renders slides from code, but you still hand-write every slide. Preso designs them for you and exports clean, editable PPTX and PDF.
Non-developers can use Preso; reveal.js is developer-only.
Preso adds themes, brand kits, charts, image generation, and an API on top of raw slide rendering.