Files
hyperframes/packages/cli
Miguel Ángel f3ae3e2dc8 fix(cli): respect --json flag on lint error paths
When lint encountered an error (e.g., invalid directory), it output
plain text even with --json, breaking JSON parsing pipelines for
agents. Now wraps the entire lint command in try-catch that emits
JSON errors when --json is set.

Reproducer:
  npx hyperframes lint --json /nonexistent/path
  # Was: plain text "Not a directory: /nonexistent/path"
  # Now: {"ok": false, "error": "Not a directory: /nonexistent/path", ...}
2026-03-30 18:29:47 +02:00
..
2026-03-29 10:10:03 +00:00
2026-03-21 22:43:56 -07:00

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

dev

Start the live preview studio in your browser:

npx hyperframes dev
# Studio running at http://localhost:3002

npx hyperframes dev --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.html

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