Hyperframes
Write HTML. Render video. Built for agents.
About
Hyperframes is an open-source video rendering framework from HeyGen. It turns HTML, CSS, media, and seekable animations into deterministic MP4 files by rendering compositions frame-by-frame in headless Chromium and encoding with FFmpeg. A set of 21 agent skills teaches coding agents the production loop — plan, write HTML, wire animations, lint, preview, render — through a /hyperframes router that picks the right creation workflow for each request. The same toolchain is what lets an agent compose launch videos from plain HTML and JavaScript, as demonstrated with the companion onetake skill.
What it can do
- Deterministic frame-by-frame MP4 rendering of HTML/CSS compositions via headless Chromium + FFmpeg
- 21 agent skills with a /hyperframes intent router covering launch videos, explainers, PR walkthroughs, motion graphics, music videos, slideshows, and deck authoring
- Seek-safe animation adapters: GSAP, CSS keyframes, WAAPI, Lottie, Three.js, Anime.js
- CLI dev loop: init, lint, check, snapshot, preview, render, publish, doctor, plus HeyGen-hosted cloud render and AWS Lambda rendering
- frame.md design-system translation layer so an agent can compose video from a brand's design tokens
- Registry of reusable blocks/components via `hyperframes catalog` / `hyperframes add`
- Plugins for Claude Code, Cursor, Codex, Gemini CLI; MCP topic support
Setup
- Install Node.js 22+ and FFmpeg.
- For Claude Code, install the plugin:
```
claude plugin marketplace add heygen-com/hyperframes
claude plugin install hyperframes@hyperframes
```
- For other agent hosts (including OpenCode), install the standalone skills:
```
npx skills add heygen-com/hyperframes
```
- Or scaffold a project manually:
```
npx hyperframes init my-video
cd my-video
npx hyperframes preview # live browser preview
npx hyperframes render # render to MP4
```
Prerequisites
Node.js 22+ and FFmpeg
Use cases
Works with
Trust score — 9/10
65,071 GitHub stars with 5,858 forks and a 515-release history show broad, fast adoption for a March 2026 release, backed by a real company (HeyGen) with published docs, a showcase, and a playground. Apache-2.0 license, 5,604 commits, and active plugin/skills maintenance across five agent hosts. One point off for youth — under a year old, so long-term maintenance track record is unproven.
★ 65,071 GitHub stars
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 9.0/10
- Maintenance · recency, releases, issue load
- 9.0/10
- Openness · license + docs
- 10.0/10
- Manual review · sanity read + red-flag check
- 9.0/10
- · 65,071 stars / 5,858 forks, created 2026-03-10
- · Apache-2.0, HeyGen-backed
- · 5,604 commits, 515 releases
- · Skills cover Claude Code, Cursor, Codex, Gemini CLI, OpenCode
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.