InterSub AI is a browser-based, interactive bilingual subtitle tool designed to help users learn languages by watching online videos.
The tool is available for free installation and use with core features. There is also a usage-based plan that offers more word lookups and AI assistant requests.
Supports YouTube, Netflix, Amazon Prime Video, Disney+, TED, Coursera, Udemy, LinkedIn Learning and other mainstream streaming and educational platforms.
You need to install a browser extension compatible with Chrome, Edge, Firefox and other major browsers, available from the official website or extension stores.
It supports learning English, Spanish, Ukrainian, Russian, and more than 30 languages, including right-to-left scripts.
This feature automatically saves words you've looked up to your personal vocabulary notebook and provides weekly high-frequency word reminders to help reinforce vocabulary.
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