HyperFrames

HyperFrames renders HTML, CSS, media and seekable animations into deterministic MP4 files, which means the same markup produces the same frames every time. Puppeteer drives the page, GSAP handles motion, and ffmpeg assembles the output. There are three ways in: the CLI, a coding agent with the skills installed, or the library sitting underneath a hosted authoring tool as its rendering core.

The skills are the part built for agents. Twenty ship with the package, and a router skill called /hyperframes reads the request first and pulls in only the creation workflow that request needs, so an install stays small. HeyGen maintains it under Apache 2.0 and it needs Node 22 or newer.