👋 Hey Product Hunt! After years of watching Japanese learners struggle with the same broken approach—memorizing grammar rules, constantly pausing videos to look up words, and using tools that treat Japanese like it's just another European language—we knew there had to be a better way. The Problem We Solved: Traditional language learning has it backwards. While children naturally acquire language through vocabulary first, we force adults to start with complex grammar rules. Current tools interrupt your enjoyment with constant translations, turning entertainment into tedious study sessions. What Makes Seikai TV Different: 🎯 Built exclusively for Japanese - No compromises from trying to handle 20+ languages in one tool 🧠 Lexeme tracking, not lemmas - Learn a word once, and we recognize ALL its variations and conjugations automatically 📊 JLPT-categorized everything - Every word and video is tagged by difficulty level (N5-N1) so you're always learning at the right pace ⚡ Expert algorithms, not just AI - Designed by Japanese-English linguists for consistent, accurate vocabulary extraction 📱 Fully mobile-optimized - Study anywhere with our spaced repetition system that syncs across devices The Science Behind It: Research shows that when you understand 50-80% of vocabulary in content, your brain naturally starts acquiring the language—grammar included. We help you reach that threshold faster by extracting, translating, and organizing vocabulary from any YouTube video you love. Early Results: Japanese teachers at UCLA are recommending it to their students Content creators report their viewers can finally focus on enjoying videos instead of constant dictionary lookups Learners passing JLPT exams credit our approach for their breakthrough 🎁 Special for PH Community: It's completely free to try! No credit card required. Just paste a YouTube link and see the magic happen. Would love to hear your experiences learning Japanese and any feedback on how we can make this even better. We're especially interested in hearing from content creators who want to make their videos more accessible to learners! Try it here: https://seikai.tv

PinMe — Publish Sites in Seconds. Tamper-proof by design.

Publish Sites in Seconds. Tamper-proof by design.

Promoted

Maker

📌

6mo ago

GPT-4o

Whoa, this is actually pretty cool! The lexeme tracking instead of just lemmas is truely a game changer for Japanese learners – I've always struggled with remembering all the different forms of words, so this kinda genius imo. Makes learning from YouTube so much easier, right? Does it work with Bilibili videos too?

Seikai TV

Learn Japanese watching YouTube videos

Learn Japanese watching YouTube videos