Universal AI Dubber

Chrome extension Available

Adds a “Dub” control to captioned videos on any supported site and plays a translated voice track over them.

Annotated page showing the extension's floating Dub button on a captioned video
The floating “Dub this video” button on a captioned video

Who it helps

People who want captioned web videos — courses, HTML5 players — dubbed into their language on sites that have no dedicated extension.

The problem it solves

The site-specific dubbers only work on their own platform; other sites with captions had no one-click dubbing.

What it does

  • Detects videos with accessible captions and adds a floating Dub control per video
  • Translates the captions and generates a synced speech track over the ducked original audio
  • Free path: standard mode with Google Translate and on-device Piper speech
  • PRO: real-time mode, premium local and cloud voices, LLM translation and your own AI provider keys
  • Per-video state — multiple videos on a page get independent language and voice settings
  • Caches generated audio locally

Needs detectable captions; DRM-protected video and live streams are excluded. Listed on the Chrome Web Store as “Unlimited Universal Video Translator”.

More of the product

Extension popup with per-video language and voice settings
Per-video language and voice controls