Language Reactor records 1,878,769 monthly visits with +0.6% month-over-month growth and Freemium pricing. Viduu records 0 monthly visits with — growth and Contact for Pricing pricing.
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
An AI language tutor that turns the videos you already watch into graded lessons
| Dimension / Metric | | |
|---|---|---|
| Official Domain | languagereactor.com | chromewebstore.google.com |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 1.88M (1,878,769) | 0 (0) |
| MoM Traffic Delta | +10.73K (+0.6%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
| Direct Visits / mo | 1.45M | 0 |
| User Rating | 4.4 | 1.9 |
| Supported Platforms | Website | Browser Extension |
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
View your target language together with a translation, pause, replay single lines, and jump back to the previous subtitle with a hotkey.
Hover or click any subtitle word to see definitions, part of speech, and pronunciation without leaving the video.
Automatically saves looked-up words and phrases, then quizzes you with the original context to build durable recall.
Bring the same translation and lookup workflow to ebooks, PDFs, articles, and other web pages.
An AI language tutor that turns the videos you already watch into graded lessons
The extension reads what you are watching and estimates whether the language is above, at, or below your current comprehension level.
Questions are generated from the actual content of the video rather than from a fixed textbook, so practice matches your interests.
Any video with captions or on-screen text becomes study material, turning ordinary browsing into language practice.
Difficulty tuning and questions are handled by the extension in the background, without you assembling a syllabus by hand.
Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.
Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.
Free / Open-sourceLearn a new language by talking to lifelike AI tutors
Free / Open-sourceLearn a new language by talking to lifelike AI tutors
Free / Open-sourceAn AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
Free / Open-sourceAn AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
Free / Open-sourceAI lesson-material generator for language teachers
Free / Open-sourceLearn Spanish fast by scrolling short videos from native speakers
Free / Open-sourceLearn Spanish fast by scrolling short videos from native speakers
Free / Open-sourceLearn languages with dual subtitles and a hover dictionary in any video
Free / Open-sourceLearn languages with dual subtitles and a hover dictionary in any video
Translates and dubs YouTube videos into multiple languages while displaying bilingual subtitles for easier comprehension.
Translates and dubs YouTube videos into multiple languages while displaying bilingual subtitles for easier comprehension.
SpecialistBrowser translation, dictionary, and AI writing assistant
SpecialistBrowser translation, dictionary, and AI writing assistant
Free / Open-sourceBilingual subtitles and translated pages wherever you read or watch
Free / Open-sourceBilingual subtitles and translated pages wherever you read or watch
SpecialistFocuses on real-time video translation and interactive explanations, offering a mobile-friendly alternative for media-based learning.
SpecialistFocuses on real-time video translation and interactive explanations, offering a mobile-friendly alternative for media-based learning.
Free / Open-sourceLearn a language while watching Netflix and YouTube, with AI subtitles, chat and pronunciation feedback
Free / Open-sourceLearn a language while watching Netflix and YouTube, with AI subtitles, chat and pronunciation feedback
