heygen-com--hyperframes/docs/introduction.mdx

---
title: Introduction
description: "Write HTML. Render video. Built for agents."
---

Hyperframes is an open-source framework that turns HTML into deterministic, frame-by-frame rendered video — so you can define a video the same way you build a web page.

## See It in Action

Here is a video defined entirely as HTML:

```html
<div id="root" data-composition-id="demo"
     data-start="0" data-width="1920" data-height="1080">

  <video id="clip-1" data-start="0" data-duration="5"
         data-track-index="0" src="intro.mp4" muted playsinline></video>

  <h1 id="title" class="clip"
      data-start="1" data-duration="4" data-track-index="1"
      style="font-size: 72px; color: white;">
    Welcome to Hyperframes
  </h1>

  <audio id="bg-music" data-start="0" data-duration="5"
         data-track-index="2" data-volume="0.5" src="music.wav"></audio>
</div>
```

Run `npx hyperframes render --output demo.mp4` and this produces an MP4 with deterministic, frame-by-frame capture. Same input, identical output, every time. No timeline editor. No proprietary format. Just HTML.

<CardGroup cols={2}>
  <Card title="Watch the Showcase" icon="play" href="/showcase">
    Finished HyperFrames videos you can watch, read, run, and remix — product launches, website-to-video demos, UI reveals, and VFX experiments.
  </Card>
  <Card title="Browse the Catalog" icon="grid-2" href="/catalog/blocks/data-chart">
    50+ ready-to-use blocks and components — social overlays, shader transitions, data visualizations, and cinematic effects. Install any of them with one command.
  </Card>
  <Card title="Quick Start" icon="rocket" href="/quickstart">
    Go from zero to rendered video in under 5 minutes.
  </Card>
  <Card title="Skills catalog" icon="sparkles" href="/guides/skills">
    Every HyperFrames AI agent skill — router, creation workflows, and domain skills. Install with `npx skills add heygen-com/hyperframes`.
  </Card>
</CardGroup>

## Why Hyperframes?

<Tabs>
  <Tab title="For developers">
    **You already know the stack.** Compositions are HTML files with data attributes. Animations use GSAP, Lottie, CSS, or any runtime that can seek to a given frame. There is no custom DSL, no proprietary component system, and no React requirement. If you can build a web page, you can build a video.
  </Tab>
  <Tab title="For AI agents">
    **Agents already speak HTML.** Most video tools require complex APIs or drag-and-drop interfaces that agents cannot operate. Hyperframes compositions are plain HTML documents — the format LLMs are best at generating. The CLI is non-interactive by default — all inputs via flags, plain text output, fail-fast on errors — so agents can drive every command without prompts or parsing.
  </Tab>
  <Tab title="For automated pipelines">
    **Determinism by design.** The rendering pipeline is seek-driven with no wall-clock dependencies. `frame = floor(time * fps)` — every frame is independently captured via Chrome's `beginFrame` API and encoded with FFmpeg. Same input always produces identical output, making CI testing and batch rendering reliable.
  </Tab>
</Tabs>

<Tip>
  Hyperframes was designed from the ground up for AI agent integration. Compositions are plain HTML that any LLM can generate. The CLI is non-interactive by default — flag-driven with plain text output — so agents can scaffold, render, and lint without interactive prompts. Add `--human-friendly` for the interactive terminal UI. See [CLI](/packages/cli) for details.
</Tip>

## How It Works

<Steps>
  <Step title="Write HTML">
    Define your video as an HTML document. Each element gets data attributes for timing (`data-start`, `data-duration`) and layout (`data-track-index`). Add animations with GSAP, Lottie, CSS transitions, or any seekable runtime via the Frame Adapter pattern.
  </Step>
  <Step title="Preview in the browser">
    Run `npx hyperframes preview` to open a live preview in your browser. Edit your HTML and see changes instantly — no build step, no compilation.
  </Step>
  <Step title="Render to MP4">
    Run `npx hyperframes render --output output.mp4` to produce a final video. The engine seeks each frame in headless Chrome, captures it with `beginFrame`, and pipes the result through FFmpeg. Run locally or in Docker for fully reproducible output.
  </Step>
</Steps>

## Packages

<CardGroup cols={2}>
  <Card title="@hyperframes/core" icon="cube" href="/packages/core">
    Types, HTML parsing, runtime, and composition linter — the foundation everything else builds on.
  </Card>
  <Card title="@hyperframes/sdk" icon="code" href="/packages/sdk">
    Headless composition editing engine for agents, custom editors, patch events, and persistence.
  </Card>
  <Card title="@hyperframes/engine" icon="gear" href="/packages/engine">
    Seekable page-to-video capture engine. Loads HTML in headless Chrome and captures frame-by-frame.
  </Card>
  <Card title="@hyperframes/player" icon="play" href="/packages/player">
    Embeddable web component for playing HyperFrames compositions in any web page.
  </Card>
  <Card title="@hyperframes/producer" icon="video" href="/packages/producer">
    Full rendering pipeline combining capture and FFmpeg encoding into a single API call.
  </Card>
  <Card title="@hyperframes/shader-transitions" icon="sparkles" href="/packages/shader-transitions">
    WebGL shader transitions for scene-to-scene motion and render-time compositing.
  </Card>
  <Card title="@hyperframes/aws-lambda" icon="cloud" href="/packages/aws-lambda">
    AWS Lambda and Step Functions adapter for distributed rendering.
  </Card>
  <Card title="@hyperframes/gcp-cloud-run" icon="cloud" href="/packages/gcp-cloud-run">
    Google Cloud Run and Workflows adapter for distributed rendering.
  </Card>
  <Card title="@hyperframes/studio" icon="palette" href="/packages/studio">
    Visual composition editor UI for building and previewing timelines interactively.
  </Card>
  <Card title="hyperframes (CLI)" icon="terminal" href="/packages/cli">
    Command-line tool for creating, previewing, and rendering compositions.
  </Card>
</CardGroup>

## Next Steps

<CardGroup cols={2}>
  <Card title="Showcase" icon="play" href="/showcase">
    Get inspired by finished videos and production launch projects.
  </Card>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Build and render your first video in 60 seconds
  </Card>
  <Card title="Skills catalog" icon="sparkles" href="/guides/skills">
    Every HyperFrames AI agent skill — router, creation workflows, and domain skills
  </Card>
  <Card title="Compositions" icon="layer-group" href="/concepts/compositions">
    Understand the HTML-based data model behind every video
  </Card>
  <Card title="GSAP Animation" icon="wand-magic-sparkles" href="/guides/gsap-animation">
    Add timeline-driven animations with GSAP
  </Card>
  <Card title="Rendering" icon="film" href="/guides/rendering">
    Render locally, in Docker, or in a CI pipeline
  </Card>
</CardGroup>