NTVFrames CLI

Local CLI for creating, previewing, validating, and rendering HTML video compositions.

Install

npm install -g ntvframes
# or
npx ntvframes <command>

Requires Node.js 22+ and FFmpeg.

Commands

• init — scaffold a local project
• preview — open the local Studio preview
• render — render a composition to MP4
• lint / check — validate a composition
• capture — capture local pages and media
• beats — inspect beat timing
• keyframes — inspect and author keyframes
• normalize-audio — match local authored audio levels
• media-treatment — analyze and apply local media treatment
• remove-background — remove a local image background
• transcribe — transcribe local footage
• browser — manage local Chromium
• doctor — check local dependencies
• info — print local environment information

Example:

npx ntvframes init my-video --example blank
cd my-video
npx ntvframes preview
npx ntvframes check
npx ntvframes render -o output.mp4

The CLI and Studio run locally; no hosted rendering or account is required.