Learn English, Spanish etc. effortlessly while watching videos with interactive subtitles
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InterSub. turns video watching on YouTube, Netflix, TED or Coursera into a language practice
InterSub. turns video watching on YouTube, Netflix, TED or Coursera into a language practice
Get an instant translation of new and unknown words in English, Spanish and 30 other languages, save and manage them in your vocabulary, and learn on the go with our mobile apps or Telegram bots.
Get an instant translation of new and unknown words in English, Spanish and 30 other languages, save and manage them in your vocabulary, and learn on the go with our mobile apps or Telegram bots.
How it works
How it works
Install a browser extension in 5 seconds
Open a video you want to watch on YouTube, Netflix, TED or Coursera
Choose double or single subtitles mode. And when to show them - always or on pause only
Instantly translate unfamiliar words (or English phrasal verbs) by hovering on them in subtitles
Or choose the same language (e.g. English to English) to get a word description from the Oxford Dictionary
Use Remote Control to look up words while watching on a big screen
Learn saved words in our or your favorite mobile apps and Telegram bots
Use statistics to learn words even more effectively and efficiently
Install a browser extension in 5 seconds
Open a video you want to watch on YouTube, Netflix, TED or Coursera
Choose double or single subtitles mode. And when to show them - always or on pause only
Instantly translate unfamiliar words (or English phrasal verbs) by hovering on them in subtitles
Or choose the same language (e.g. English to English) to get a word description from the Oxford Dictionary
Use Remote Control to look up words while watching on a big screen
Learn saved words in our or your favorite mobile apps or Telegram bots
Use statistics to learn words even more effectively and efficiently
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 customers are fond of InterSub.
Our customers are fond of InterSub.
  • Elena
    Love 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.
  • Nick
    I was invited to the beta-test, and was quite impressed! Thank you, guys, and can't wait for the Dictionary function.
  • Alex
    This 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.
Start now
Start now
Use it for free! Upgrade anytime for $5/mo
Use it for free! Upgrade anytime for $5/mo
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