Migaku

Migaku is a language learning tool that turns YouTube, Netflix and web pages into flashcard-based language lessons. Migaku is a Chrome extension and mobile app for learning 11 languages from real media. Click words in YouTube, Netflix and web pages for AI-assisted definitions, build flashcards, and review them with spaced repetition.

Migaku is a language learning system built around immersion. Its core is a Chrome extension that adds clickable subtitles and text lookups to sites such as YouTube, Netflix, Disney+, Viki, X and Reddit. Instead of working through a fixed curriculum, a learner picks content they already enjoy and uses it as raw study material. The service covers eleven languages, including Japanese, Mandarin, Cantonese, Korean, Spanish, French, German, Italian, Portuguese, Vietnamese and English. In practice the workflow runs in a few stages. Beginners can start with a short course on the most common words and grammar patterns, which the site says make up the bulk of everyday content. From there, clicking a word in a page or subtitle line opens a definition, pronunciation, images and an AI explanation of the word in context. A flashcard can be created from that spot, carrying the sentence, audio, a screenshot and the definition. Cards are then reviewed with spaced repetition, including on a mobile app. Migaku also tracks the words a user has learned and gives pages a comprehension score, which helps in choosing the next video or article at a suitable difficulty. The tool is aimed at self-directed learners who want to move from apps and textbooks to native media, and it also offers options for more advanced users: monolingual dictionaries, importing custom subtitles, importing known words, hotkeys, advanced text-to-speech, flashcards for whole dialogues and card statistics. A grammar reference and an active Discord community support the product. The team describes itself as made up of language learners who used input-heavy methods. Among alternatives, Migaku sits closer to subtitle-overlay tools and Anki-based mining workflows than to gamified apps like Duolingo. Its strength is combining lookup, card creation and review in one place. The tradeoff is that progress depends on the learner's own discipline and on the browser extension, rather than on guided, structured lessons.