HeyGen Opens HyperFrames: HTML-to-Video Framework Renders Launch Videos 2.7× Faster Than Remotion

HeyGen has open-sourced HyperFrames, an HTML-to-video rendering framework that turns web pages and code-defined animations into deterministic MP4 videos. Released in April 2026 under Apache 2.0 license with no per-render fees, HyperFrames targets AI agents and developers who want to generate videos programmatically without traditional video editing. The system treats HTML and CSS as video source code, using data attributes (like data-start="2" and data-duration="3") to control frame-precise timelines, then renders to video using headless Chrome and FFmpeg.