Frequently Asked Questions

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.

AI Video Dub supports 25+ languages: English, Spanish, Portuguese, Russian, French, German, Chinese, Japanese, Korean, Hindi, Arabic, Turkish, Italian, Polish, Dutch, Indonesian, Vietnamese, Thai, Ukrainian, Czech, Armenian, Romanian, Swedish, Greek, and Hebrew.

Yes! AI Video Dub automatically detects the source language of the video and translates it to your selected target language. For example, you can translate a Spanish video to Japanese, or a Russian video to English.

The extension automatically reads the subtitle track metadata from YouTube to determine the original language of the video. No manual setup needed.

Yes, we plan to add more languages based on user demand. If you need a specific language, let us know.

AI Video Dub uses your browser's built-in text-to-speech (TTS) engine to read translated subtitles aloud in real time. The voice quality depends on your operating system and browser.

Yes, you can select from multiple voices available for each language in the extension settings. The available voices depend on your operating system.

Yes, you can independently control:

• Voice volume (translation)
• Original video volume
• Speech rate (speed)

Voice availability depends on your browser and operating system. Most major languages have voices available. For languages without TTS support, the translation is shown as text only.

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 and prevent abuse.

We only collect your Google profile information (name, email) for authentication. We do not record, store, or transmit any video content or browsing history. See our Privacy Policy for details.

AI Video Dub uses advanced AI translation technology to deliver high-quality subtitles in 25+ languages. The system automatically selects the best available translation method for each video.

Translation quality depends on:

• Quality of the original subtitles (auto-generated subtitles can have errors)
• Complexity of the content (technical jargon, slang)
• Language pair (some pairs translate better than others)

For best results, choose videos with clear speech and manually added subtitles.

Yes, the extension can display both the original subtitles and the translation simultaneously. You can toggle each on or off in settings.