InterSub

What is InterSub?

InterSub is a browser extension available for Google Chrome, Microsoft Edge, and Firefox designed for language learning and skill acquisition through video content. It integrates seamlessly with popular streaming platforms like YouTube, Netflix, Prime Video, and educational sites like Udemy, Coursera, LinkedIn Learning, and TED to provide real-time dual subtitles in both your native and target languages. The extension offers instant translations when you hover over unfamiliar words, enhancing your learning experience without interrupting video playback. InterSub saves all the words you've looked up in a personal dashboard, allowing you to track your vocabulary progress and export your learning data. With features like AI-powered subtitle generation, a language buddy chat, and mobile app integration for remote control, InterSub transforms everyday entertainment into an immersive language learning classroom.

How to use InterSub?

To use InterSub, first install the free browser extension from the Chrome Web Store, Microsoft Edge Addons, or Firefox Add-ons for your preferred browser. After installation, navigate to any supported platform like YouTube, Netflix, Udemy, or Coursera and start playing a video. InterSub will automatically display dual subtitles—one in your target language and one in your native language—at the bottom of the video. Hover your cursor over any unfamiliar word in the subtitles to instantly see its translation, meaning, and lemma details without pausing the video. You can customize subtitle settings, adjust their size and position using hotkeys, and access your personalized dashboard to review all the words you've looked up. The extension also offers AI-powered features like automatic subtitle generation when only one language track exists and an AI Language Buddy chat for grammar and usage questions.

InterSub's Core Features

• Real-time dual subtitles displaying both native and target languages simultaneously while watching videos.

• Instant word translation by hovering over unfamiliar words in subtitles without pausing playback.

• Automatic vocabulary saving to a personal dashboard for all words looked up during video sessions.

• AI-powered subtitle generation that creates missing caption tracks on-the-fly for long videos and lectures.

• AI Language Buddy chat feature for asking questions about slang, grammar, usage, and getting additional examples.

• Support for multiple streaming platforms including YouTube, Netflix, Prime Video, Udemy, Coursera, LinkedIn Learning, TED, and Crunchyroll.

• Browser compatibility across Google Chrome, Microsoft Edge, and Firefox.

• Customizable subtitle display with adjustable size, position, and visibility options using keyboard hotkeys.

• Remote control mobile app integration for controlling video playback and subtitle lookup from smartphones.

• Multi-language support with the ability to switch between different target languages.

• Shadowing feature that can be toggled for language practice.

• Export functionality to save and review vocabulary lists outside the platform.

• Free trial period offering 14 days of premium features with unlimited access.

• Translation capability for words and phrases on almost all websites beyond just video platforms.

InterSub's Use Cases

• #1

  Learning a new language by watching Netflix movies and TV shows with dual subtitles

• #2

  Improving language skills while taking online courses on Udemy or Coursera

• #3

  Expanding vocabulary by watching YouTube videos in a foreign language

• #4

  Studying professional terminology while viewing LinkedIn Learning courses

• #5

  Practicing listening comprehension with TED talks in your target language

• #6

  Building a personalized vocabulary list from words encountered in videos

• #7

  Using AI translation to generate subtitles when only one language track is available

• #8

  Tracking language learning progress through the InterSub dashboard

• #9

  Controlling video playback and looking up words remotely using a smartphone