InterSub. AI-powered interactive dual subtitles and instant word translations make learning fun and effective.
InterSub. AI-powered interactive dual subtitles and instant word translations make learning fun and effective.
Boost your language skills while enjoying your favorite shows on YouTube, Netflix, Prime Video, TED and courses on Coursera, Udemy and LinkedIn Learning. We support English, Spanish and 30 other languages.
Boost your language skills while enjoying your favorite shows on YouTube, Netflix, Prime Video, TED and courses on Coursera, Udemy and LinkedIn Learning. We support English, Spanish and 30 other languages.
How it works
How it works
Dual Subtitles
Watch videos with subtitles in your target language and your native language side-by-side.
Instant Translations
Hover over any word in the subtitles to get an AI-generated instant definition and a context translation.
Personal Wordbook
All translated words are automatically saved to your personal vocabulary list (or "wordbook") for easy review.
Mobile Integration
Sync your wordbook to our mobile apps or Telegram bots for on-the-go learning.
Dual Subtitles
Watch videos with subtitles in your target language and your native language side-by-side.
Instant Translations
Hover over any word in the subtitles to get an AI-generated instant definition and a context translation.
Personal Wordbook
All translated words are automatically saved to your personal vocabulary list (or "wordbook") for easy review.
Mobile Integration
Sync your wordbook to our mobile apps or Telegram bots for on-the-go learning.
Key Features
Key Features
Multi-Platform Support
InterSub works on YouTube, Netflix, Prime Video, TED, Coursera, Udemy and LinkedIn Learning. And more to come.
Collocation Detection
InterSub's advanced AI recognizes English phrasal verbs, idioms, and compound nouns.
Remote Control
Use your phone to look up words while watching on a big screen.
"Show Subtitles on Pause"
Focus on the video, with subtitles only appearing when you need them.
Multi-Platform Support
InterSub works on YouTube, Netflix, Prime Video, TED, Coursera, Udemy and LinkedIn Learning. And more to come.
Collocation Detection
InterSub's advanced AI recognizes English phrasal verbs, idioms, and compound nouns.
Remote Control
Use your phone to look up words while watching on a big screen.
"Show Subtitles on Pause"
Focus on the video, with subtitles only appearing when you need them.
See in action
See in action
Grow your language skills with no extra time spent
Grow your language skills with no extra time spent
Our 5000+ customers are fond of InterSub.
Our 5000+ customers are fond of InterSub.
- ElenaLove the feature! My English is pretty good, but I'm not native, so, sometimes a little help could be handy. The fact that now I can check the translation without distraction is awesome! And it is completely worth the few bucks of a subscription.
- NickI was invited to the beta-test, and was quite impressed! Thank you, guys, and can't wait for the Dictionary function.
- AlexThis function is really helpful! Translation to French seems pretty accurate. It’s great that there is no need to interrupt watching if you didn't understand a new word.
Get Started with InterSub
Get Started with InterSub
InterSub is available as a free browser extension for Chrome, Edge, and Firefox. Download it today and transform your screen time into language learning time!
InterSub is available as a free browser extension for Chrome, Edge, and Firefox. Download it today and transform your screen time into language learning time!
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