InterSub favicon

InterSub
AI-powered interactive dual subtitles and instant word translations make learning fun and effective

InterSub
Freemium

Home: https://intersub.cc

InterSub

What is InterSub?

InterSub is an innovative language learning browser extension that transforms regular video watching into an effective learning experience. The tool seamlessly integrates with major streaming platforms and educational websites, providing real-time dual subtitles and AI-powered translations.

The extension works across multiple platforms including YouTube, Netflix, Prime Video, Crunchyroll, TED, Coursera, Udemy, and LinkedIn Learning. With advanced AI capabilities, InterSub recognizes English phrasal verbs, idioms, and compound nouns, while automatically saving translated words to a personal vocabulary list for future review.

Features

  • Dual Subtitles: Side-by-side display of native and target language subtitles
  • Instant Translations: AI-powered hover translations with context
  • Personal Wordbook: Automatic saving of translated words for review
  • Multi-Platform Support: Works across major streaming and educational platforms
  • Collocation Detection: AI recognition of phrasal verbs, idioms, and compound nouns
  • Mobile Integration: Sync capability with mobile apps and Telegram bots
  • Remote Control: Phone-based word lookup for big screen viewing
  • Custom Subtitle Display: Show subtitles only during pause

Use Cases

  • Language learning while watching entertainment content
  • Educational video comprehension
  • Vocabulary building through streaming content
  • Self-paced language study
  • Cross-platform learning on streaming services
  • Mobile-based vocabulary review

FAQs

  • Which browsers are compatible with InterSub?
    InterSub is compatible with major browsers including Google Chrome, Microsoft Edge, and Firefox.
  • Is InterSub suitable for beginners?
    Yes, InterSub is designed for learners at all levels, including beginners. The dual subtitle feature and instant translations make it easier for newcomers to understand content in their target language.
  • Can I use InterSub offline?
    InterSub requires an internet connection to function properly, as it provides real-time translations and subtitle synchronization.

Helpful for people in the following professions

Related Tools:

View all Alternatives

Blogs:

  • Best ai tools for Twitter Growth

    Best ai tools for Twitter Growth

    The best AI tools for Twitter's growth are designed to enhance user engagement, increase followers, and optimize content strategy on the platform. These tools utilize artificial intelligence algorithms to analyze Twitter trends, identify relevant hashtags, suggest optimal posting times, and even curate personalized content.

  • Top 6 AI note-taking tools for 2026: in-person, online, and hybrid use cases

    Top 6 AI note-taking tools for 2026: in-person, online, and hybrid use cases

    Most AI note-taking lists are really lists of meeting bots, which join your video call and transcribe it. That's useful, but it's half the picture. Decisions happen in hallway conversations, client dinners, on-site visits, and hybrid rooms where nobody is on a video link. This guide covers different parts of the note-taking workflow: hardware capture for in-person settings, platform-native tools for online calls, and AI layers for organizing and synthesizing what you've captured. It compares six tools by capture context, workflow fit, pricing, and limitations.

  • Best text to speech AI tools

    Best text to speech AI tools

    Text-to-speech (TTS) AI tools are designed to convert written or text-based content into natural-sounding spoken audio. These tools utilize various deep learning and neural network architectures to generate human-like speech from textual input.

Didn't find tool you were looking for?

Be as detailed as possible for better results