AI Video Dub is a free Chrome extension that translates YouTube videos in real time. It not only shows translated subtitles, but also reads them aloud with AI voice dubbing — so you can listen to videos in your language instead of reading subtitles.
Yes, AI Video Dub is completely free to use. Install it from the Chrome Web Store and start translating videos immediately.
It works on any YouTube video that has subtitles (auto-generated or manual). Most YouTube videos have auto-generated subtitles enabled by default.
Currently, AI Video Dub is designed specifically for YouTube. Support for other platforms may be added in the future.
Languages
AI Video Dub supports 50+ languages including English, Spanish, Portuguese, Russian, French, German, Chinese, Japanese, Korean, Hindi, Arabic, Turkish, Italian, Polish, Dutch, and many more.
Yes! AI Video Dub automatically detects the source language of the video and translates it to your selected target language.
The extension automatically reads the subtitle track metadata from YouTube to determine the original language. No manual setup needed.
Yes, we plan to add more languages based on user demand. If you need a specific language, let us know.
Voice & Audio
AI Video Dub uses Microsoft Neural TTS to read translated subtitles aloud in real time with natural-sounding voices.
Yes, you can select from 400+ voices available for each language in the extension settings.
Yes, you can independently control voice volume, original video volume, and speech rate.
Voice availability depends on language support. Most major languages have voices available. For languages without TTS support, the translation is shown as text only.
Technical
AI Video Dub works on Google Chrome and Chromium-based browsers (Edge, Brave, Opera, Vivaldi).
Yes, a free Google sign-in is required. This helps us maintain service quality.
We only collect your Google profile information for authentication. We do not record, store, or transmit any video content or browsing history.
Make sure you are signed in, check that the video has subtitles available, try refreshing the page. If the issue persists, contact support.
Translation Quality
AI Video Dub uses Microsoft Translator to deliver high-quality subtitles in 50+ languages.
Translation quality depends on the quality of original subtitles, complexity of the content, and language pair. For best results, choose videos with clear speech.
Yes, the extension can display both the original subtitles and the translation simultaneously. You can toggle each on or off in settings.