Browser extension for streaming platforms
Add learning tools directly to Netflix and YouTube so you can study from the media you already watch instead of switching to separate lesson content.
Language Reactor
Freemium
Study languages with native media on Netflix, YouTube, podcasts, books, and more.
What is Language Reactor?
Language Reactor is a language-learning toolbox built around native media. It began as Language Learning with Netflix and now extends beyond Netflix to YouTube, podcasts, books, webpages, and text-based study.
The product is designed to help learners discover content matched to their level and interests, then study it with subtitles, translations, dictionary lookup, vocabulary tracking, review tools, and AI-assisted explanations. The site describes it as a desktop-oriented browser extension and also notes work on phone and tablet support.
What can Language Reactor do?
Subtitle-based study controls
See bilingual subtitles, translations, and playback controls together while watching, including auto-pause after each subtitle, keyboard shortcuts, and speed control.
Dictionary and AI explanations
Click words for definitions, use example sentences with audio, and access AI-powered contextual explanations through the dictionary and Lexa AI tools.
Vocabulary review workflow
Track vocabulary across content with smart highlighting, saved-word recognition, PhrasePump review sessions, and export to Anki with screenshots and audio clips.
Support for web, books, and audio content
Import webpages or books, browse curated YouTube and podcast content, and use text-to-speech for reading and listening practice outside video platforms.
Optional Pro mode
Use Pro features such as speech recognition for Netflix audio tracks, machine translation, broader saved-word support, and an upgraded Lexa AI model.
Use Cases
“Study streaming video”
Watch Netflix with bilingual subtitles, instant word lookup, auto-pause, and translation controls so you can turn an episode into a guided study session.
“Practice with authentic audio”
Browse YouTube channels or podcast content in your target language to build comprehension from authentic speech on topics you care about.
“Study written content”
Import webpages or read books inside Language Reactor, then listen along with text-to-speech and use dictionary tools as you read.
“Build vocabulary from review”
Review saved words with PhrasePump, smart highlighting, and Anki export when you want to convert passive exposure into active vocabulary work.
“Add active practice”
Use Aria, the FSI/DLI drills, and translation or correction tools when you want more structured speaking and practice than subtitles alone provide.
Frequently Asked Questions
How does Language Reactor work?
Language Reactor works as a browser extension that adds learning tools to Netflix and YouTube. It lets you click words for definitions, save words, pause after each subtitle, and choose machine or human translations in settings.
Who is Language Reactor best for?
Language Reactor is built for learners who want to study from native material rather than from isolated exercises. Its catalogs and tools support videos, podcasts, books, webpages, and text-based study, so it is useful when you want to learn from content you already enjoy.
What can I do with it after I install it?
Language Reactor can show subtitles, dictionary lookups, vocabulary highlights, translations, and other study tools inside supported media. It also offers PhrasePump, Anki export, and Aria for practice and review.
What are the main limitations or paid features?
The source describes Language Reactor as a desktop-oriented experience and notes a phone and tablet version is being improved. Some features are Pro-only, including speech recognition for Netflix audio tracks, broader word and phrase saving, and an enhanced Lexa AI model.
How is Language Reactor priced?
The site shows subscription options for 1 month, 3 months, and 1 year, with payment by credit card or PayPal. The Pro page says you can cancel after paying if you do not want auto-renew.
Quick Facts
- Category
- Language learning tool
- Platform
- Chrome browser extension; desktop-oriented, with phone and tablet improvements noted
- Primary users
- Language learners studying from native media
- Pricing shape
- Free features plus optional Pro subscription
- Source domain
- languagereactor.com
- Former name
- Language Learning with Netflix
Language Reactor Traffic Analysis
Traffic data is for reference only.
- Domain Rating
- 59
Language Reactor Alternatives
Keysake
keysake.ai
Keysake is a Mac input method for Chinese speakers learning English. It shows relevant English expressions alongside Chinese text as you type and lets you save language from your own messages and notes for later review.
Teacher AI
yourteacher.ai
Speaking practice with AI clones of YouTube language teachers
Buddy.ai
buddy.ai
AI English learning app for children with voice lessons, games, and guided practice
ISSEN
issen.com
ISSEN is an AI language tutor for real-time speaking practice and structured study across dozens of languages, adapting lessons to your level, goals, and learning style.
Deep English
deepenglish.com
Deep English builds speaking and listening fluency with story lessons, AI practice, and live Zoom classes.
BoldVoice
boldvoice.com
BoldVoice combines coach-led video lessons with AI pronunciation feedback to help non-native English speakers speak more clearly and confidently.