HeyGen open-sources Hyperframes, a framework for turning HTML into rendered video

HeyGen has open-sourced Hyperframes, a framework that turns plain HTML, CSS and media into finished MP4 videos. The idea is simple: instead of a timeline editor, you write a web page, and Hyperframes renders it frame by frame in headless Chromium and encodes it with FFmpeg. It ships with 21 skills that teach coding agents the whole production loop, from planning and animating to previewing and rendering, so an agent can build a product launch video or a motion graphic from a single prompt. The repo has picked up over 65,000 GitHub stars since March, and the docs site includes a showcase of finished videos along with a playground. It runs locally with a small CLI (init, preview, render) and needs only Node 22 and FFmpeg. The license is Apache 2.0.

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