Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Language Reactor records 1,878,769 monthly visits with +0.6% month-over-month growth and Freemium pricing. Text Selected records 0 monthly visits with — growth and Free pricing.

Highlight text and get answers straight from the context menu
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | languagereactor.com | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| 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 | 1.8 |
| 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.

Highlight text and get answers straight from the context menu
Works with any page: highlight a word or phrase and use the context menu to submit it.
The selection is sent to a remote service that searches a JSON file for a corresponding answer.
Results appear immediately in a browser alert so you can read them without leaving the page.
Small, focused add-on that does one job: fetch relevant information for the text you selected.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

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.
Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone

SpecialistLearn a new language by talking to lifelike AI tutors
SpecialistLearn a new language by talking to lifelike AI tutors
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.

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
Adds dual subtitles and interactive hover dictionaries directly to streaming video platforms, mimicking core Language Reactor features.
Adds dual subtitles and interactive hover dictionaries directly to streaming video platforms, mimicking core Language Reactor features.
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.
AI browser extension that reads quiz questions and answers them with explanations
AI browser extension that reads quiz questions and answers them with explanations

SpecialistBrowser translation, dictionary, and AI writing assistant
SpecialistBrowser translation, dictionary, and AI writing assistant
Screenshot any question, get instant AI answers
Screenshot any question, get instant AI answers