Language Reactor: Learn Languages on Netflix and YouTube

Language Reactor turns streaming video into study material. Its Chrome Web Store listing is published by Dioco and describes learning a language by watching films and series in the target language.

Tools on the video page

• Dual subtitles: the original-language line and a translation shown together
• Pop-up dictionary: hover or click a word for its meaning
• Playback controls: repeat a line, step through subtitles and slow the audio
• Saved words: collect vocabulary for later review

The listing says it works on Netflix and YouTube, and that you can also import books and web pages to get machine translation and text-to-speech.

Free tier and paid features

The extension can be added for free, but the listing states that it offers in-app purchases. Dioco places some advanced features behind a paid subscription. Check the plan comparison on languagereactor.com for the current split.

Installing it

1. Press Download to open the official Language Reactor listing on the Chrome Web Store.
2. Click Add to Chrome and confirm.
3. Open Netflix or a YouTube video with subtitles in your target language; the extra panel appears beside the player.

Privacy

The listing discloses that the extension handles personally identifiable information and says data is not sold outside approved use cases or used for unrelated purposes. You will need to sign in to save words.

Keep in mind

Subtitle quality depends on the show or video. Auto-generated YouTube captions are less reliable than human subtitles. For translating arbitrary text elsewhere, try the Google Translate extension.