LingoSub is an AI-powered language learning tool that enhances language acquisition through video content. By providing videos with subtitles in the target language, it helps users understand new words and phrases within context. One of LingoSub's key features is the ability to tap on any word for its definition and pronunciation, reinforcing vocabulary learning. Using the comprehensible input method, the tool presents content just above the user's current proficiency level, facilitating natural language development. Videos are slowed down with simplified vocabulary, making them ideal for beginners. LingoSub's extensive library includes a wide selection of curated channels focused on language learning, covering various topics to match diverse interests. In addition to language learning-specific videos, users can immerse themselves fully by watching regular content in their target language. Users can also suggest new videos or channels for inclusion in LingoSub's library. Supporting multiple languages and offering a responsive interface for desktops, tablets, and mobile devices, LingoSub caters to learners of all proficiency levels, from beginners to advanced users. This flexible and comprehensive tool makes learning a new language through engaging content accessible and enjoyable.