Tools

HeyGen's official video plugin: compose scenes with HTML, CSS and animation and render deterministic MP4s, with skills for promo videos, captions, voiceover and music, and PR walkthrough videos. Needs Node.js 22+ and FFmpeg.

Write videos in HTML, CSS and frame-seekable animations, preview them from the CLI and render deterministic MP4s. Comes with agent skills for product launch videos, captions and talking-head re-edits. Maintained by HeyGen; needs Node.js 22+ and FFmpeg.

Generates zero-dependency, animated HTML slide decks: previews several visual styles to choose from first, and can convert PowerPoint decks to web slides. Made for non-designers who don't write CSS.

Generates single-file HTML slide decks with horizontal paging and two built-in visual systems (editorial magazine and Swiss International style), plus presenter mode with speaker notes. Can also make slide illustrations and covers for various platforms. By Guizang.

Turns any codebase into an interactive browser course: real code with plain-language explanations, animations, hover glossaries and scenario quizzes. Built for people who build software with AI but can't read code, and useful for intro programming classes. Needs only an agent and the repo.

Turns a topic, rough notes or an outline into an animated web slide deck. Invents a custom theme, shows a two-slide preview and builds the full single-file HTML deck with speaker notes only after you approve. Also edits existing reveal.js decks and can export PDF or deploy.