Double-audio bug fix: - scaffolding.ts: stop writing index.html in captures/ (root cause — runtime discovered scaffold + real index.html as two compositions) - New lint rule: multiple_root_compositions — errors if >1 root HTML - New lint rule: duplicate_audio_track — warns on overlapping audio Capture improvements (from testing 30+ websites): - Catalog runs BEFORE extractHtml (which mutates DOM — converts img src to data URLs). HeyKuba: 2 images → 78. - networkidle2 instead of networkidle0 (unblocks SPAs with WebSockets) - Lazy-load image wait, CSS background-image cataloging - SVG naming from class/id/parent (not just aria-label) - Gemini batch 5→20, pause 12s→2s, maxOutputTokens 300→500 - Asset descriptions sorted: captioned first Docs: - New guide: guides/website-to-video.mdx (full tutorial) - CLI docs: added capture and snapshot commands - docs.json: website-to-video in Guides nav C
hyperframes
CLI for creating, previewing, and rendering HTML video compositions.
Install
npm install -g hyperframes
Or use directly with npx:
npx hyperframes <command>
Requirements: Node.js >= 22, FFmpeg
Commands
init
Scaffold a new Hyperframes project from a template:
npx hyperframes init my-video
cd my-video
preview
Start the live preview studio in your browser:
npx hyperframes preview
# Studio running at http://localhost:3002
npx hyperframes preview --port 4567
render
Render a composition to MP4:
npx hyperframes render ./my-composition.html -o output.mp4
lint
Validate your Hyperframes HTML:
npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose # Include info-level findings
By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.
compositions
List compositions found in the current project:
npx hyperframes compositions
benchmark
Run rendering benchmarks:
npx hyperframes benchmark ./my-composition.html
doctor
Check your environment for required dependencies (Chrome, FFmpeg, Node.js):
npx hyperframes doctor
browser
Manage the bundled Chrome/Chromium installation:
npx hyperframes browser
info
Print version and environment info:
npx hyperframes info
docs
Open the documentation in your browser:
npx hyperframes docs
upgrade
Check for updates and show upgrade instructions:
npx hyperframes upgrade
npx hyperframes upgrade --check --json # machine-readable for agents
Documentation
Full documentation: hyperframes.heygen.com/packages/cli
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI