Language Reactor records 1,878,769 monthly visits with +0.6% month-over-month growth and Freemium pricing. VidSense records 0 monthly visits with — growth and Free pricing.
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Ask questions and get instant AI summaries of the YouTube video you're watching
| 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 | 3.7 |
| 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.
Ask questions and get instant AI summaries of the YouTube video you're watching
Type a natural-language question and get an AI answer grounded in the YouTube video that is open in your active tab.
Generate a condensed summary of a long video to grasp the main points before deciding whether to watch it in full.
Create practice quizzes, request translations, or write custom prompts so the video's content becomes interactive study material.
No external site, no link pasting and no separate dashboard — the assistant runs as an overlay on the page you are already on.
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.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
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
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Summarize any YouTube video into key ideas and timestamped notes in seconds.
Summarize any YouTube video into key ideas and timestamped notes in seconds.
AI summaries that turn long YouTube videos into key ideas in seconds
AI summaries that turn long YouTube videos into key ideas in seconds
Chat with any YouTube video and get instant answers from its content
Chat with any YouTube video and get instant answers from its content
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.
