Lingaku: Learn Japanese with Videos & Web Browsing

Tracking since Apr 1, 2026.

Changelog

• Jun 6, 2026
  permissions

  storage, tabs

  storage, tabs, sidePanel

• May 24, 2026
  description

  LINGAKU — LEARN JAPANESE WITH VIDEOS & WEB BROWSING
  
  Turn the entire internet into your Japanese classroom.
  
  Lingaku adds a smart popup dictionary to Japanese websites and YouTube videos so you can learn naturally while reading and watching. Every lookup becomes part of your long-term progress.
  
  INSTANT POPUP DICTIONARY 🌸
  
  Hover or click on any Japanese word to instantly see:
  
  • Readings (furigana)
  • Meanings
  • Kanji details
  • Example sentences
  
  Understand what you’re reading without breaking your focus.
  
  Stay in the flow.
  
  WORKS WITH YOUTUBE SUBTITLES 🎬
  
  Learn directly from videos. Lingaku lets you look up words inside YouTube subtitles.
  
  TRACK YOUR VOCABULARY ACROSS THE WEB 📊
  
  Every lookup becomes part of your system.
  
  Mark words as:
  
  • New
  • Seen
  • Familiar
  • Known
  • Mastered
  
  Your progress syncs across all websites and videos, so everything stays connected.
  
  REMEMBER CONTEXT, NOT JUST DEFINITIONS 🔎
  
  Lingaku automatically keeps your lookup history, including:
  
  • Source websites
  • Example sentences
  • Video timestamps
  • Direct links
  
  You can revisit any word and see exactly where you found it.
  
  Context makes vocabulary stick.
  
  TURN LOOKUPS INTO FLASHCARDS 🗂️
  
  Build your decks naturally.
  
  With two clicks, add any word to your personal flashcard collections for focused review.
  
  Study when it helps.
  Read when you’re ready.
  Let real usage drive retention.
  
  
  LEARN WITHOUT BURNOUT 🌿
  
  No rigid schedules.
  No pressure.
  No isolated memorization.
  
  Read what interests you.
  Watch what you enjoy.
  Look up what you need.
  
  Lingaku tracks the rest.
  
  
  WHY INSTALL LINGAKU?
  
  • Understand Japanese websites instantly
  • Learn directly from YouTube videos
  • Track vocabulary automatically
  • Keep full context of every word
  • Build flashcards without interrupting flow
  
  Stop separating “studying” from “using” Japanese.
  
  With Lingaku, learning happens naturally — wherever Japanese appears online.
  
  ACCOUNT & SUBSCRIPTION ℹ️
  
  To use Lingaku, you’ll need an account at lingaku.com.
  
  New users get a 10-day free trial with full access. No credit card required.
  
  After the trial, a subscription is needed to continue using the service and syncing your progress across devices.

  LINGAKU — LEARN JAPANESE WITH VIDEOS & WEB BROWSING
  
  Turn the entire internet into your Japanese classroom.
  
  Lingaku adds a smart popup dictionary to Japanese websites and YouTube videos so you can learn naturally while reading and watching. Every lookup becomes part of your long-term progress.
  
  INSTANT POPUP DICTIONARY 🌸
  
  Hover or click on any Japanese word to instantly see:
  
  • Readings (furigana)
  • Meanings
  • Kanji details
  • Example sentences
  
  Understand what you’re reading without breaking your focus.
  
  Stay in the flow.
  
  WORKS WITH YOUTUBE SUBTITLES 🎬
  
  Learn directly from videos. Lingaku lets you look up words inside YouTube subtitles.
  
  TRACK YOUR VOCABULARY ACROSS THE WEB 📊
  
  Every lookup becomes part of your system.
  
  Mark words as:
  
  • New
  • Seen
  • Familiar
  • Known
  • Mastered
  
  Your progress syncs across all websites and videos, so everything stays connected.
  
  REMEMBER CONTEXT, NOT JUST DEFINITIONS 🔎
  
  Lingaku automatically keeps your lookup history, including:
  
  • Source websites
  • Example sentences
  • Video timestamps
  • Direct links
  
  You can revisit any word and see exactly where you found it.
  
  Context makes vocabulary stick.
  
  TURN LOOKUPS INTO FLASHCARDS 🗂️
  
  Build your decks naturally.
  
  With two clicks, add any word to your personal flashcard collections for focused review.
  
  Study when it helps.
  Read when you’re ready.
  Let real usage drive retention.
  
  
  LEARN WITHOUT BURNOUT 🌿
  
  No rigid schedules.
  No pressure.
  No isolated memorization.
  
  Read what interests you.
  Watch what you enjoy.
  Look up what you need.
  
  Lingaku tracks the rest.
  
  
  WHY INSTALL LINGAKU?
  
  • Understand Japanese websites instantly
  • Learn directly from YouTube videos
  • Track vocabulary automatically
  • Keep full context of every word
  • Build flashcards without interrupting flow
  
  Stop separating “studying” from “using” Japanese.
  
  With Lingaku, learning happens naturally — wherever Japanese appears online.
  
  ACCOUNT & SUBSCRIPTION ℹ️
  
  To use Lingaku, you’ll need an account at lingaku.com.
  
  New users get a 7-day free trial with full access. No credit card required.
  
  After the trial, some features will only be accessible with a subscription.

Permissions & access

Permissions

storagetabssidePanel

Host access

https://lingaku.com/*

Screenshots

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