This task can be performed using Seikai.TV
The Best Way To Learn Japanese Watching YouTube
Best product for this task

Seikai.TV
edtech
SeikaiTV extracts, translates and organizes Japanese vocabulary from any YouTube video.
What to expect from an ideal product
- Watch Japanese YouTube videos with instant word translations on screen
- Click on any Japanese word to see its meaning and pronunciation
- Build a personal vocabulary list from words you discover in videos
- Review Japanese words you've learned with built-in flashcards
- Save interesting phrases from YouTube videos to study them later