Lingaku: Learn Japanese & Chinese with Videos & Web Browsing

Japanese and Chinese popup dictionary for websites and YouTube, with vocabulary size tracking, lookup history, and flashcards.

Read Japanese and Chinese on the web without stopping to look things up somewhere else. Lingaku makes Japanese and Chinese text on any website clickable. Click a word, see what it means, carry on reading. Every word you look up is saved with the page and the sentence you found it in. Requires a free Lingaku account (lingaku.com). Nothing is tracked or highlighted until you sign in. WHAT IT DOES Popup dictionary on any website Japanese and Chinese text becomes clickable: news, blogs, web novels, anything. Click a word for its meaning, reading and frequency. Click a kanji or a hanzi inside it for the readings and meanings of the character itself. Furigana and pinyin are added automatically. Clickable YouTube subtitles Japanese and Chinese subtitles get furigana or pinyin and become clickable while the video plays. The video pauses while you read a definition and resumes when you close it. A transcript sits beside the player. Click any line to jump back to it. Subtitle size, weight, colour and position are all adjustable. Words you know, highlighted Mark each word as New, Seen, Familiar, Known or Mastered. Lingaku then highlights them everywhere you read, so you can see what's new on a page and what you've already got. Every lookup is kept Each lookup is saved with the page title, the URL, the sentence around the word, and the timestamp for videos. Months later you can still find where you first met a word. Search and filter your history by word, site, date, YouTube channel or how well you know it. A side panel for the page you're on See the page's difficulty level and how much of its vocabulary you already know before you commit to reading it. The panel also lists every word you looked up on that page, and lets you send them straight to a deck. Turn lookups into review Send the words you've looked up to a flashcard deck on lingaku.com, or study them straight from your lookup history without building a deck first. Cards keep the sentence you originally read. HOW PEOPLE USE IT Watch a Japanese or Chinese YouTube video and click the words you don't know as they come up. Read a news article or a web novel and get through it without leaving the page. Look back at the end of the week and turn what you actually came across into review material. GOOD TO KNOW A free Lingaku account is required. The extension does nothing until you sign in. Japanese and Chinese. You pick the language you are learning in the side panel and can switch it any time. Chinese pages work in simplified and traditional characters, and a word you look up in one form is the same word in the other. You can turn Lingaku off per site. It stays off there until you turn it back on. Works alongside lingaku.com, where your vocabulary, decks, lessons, grammar and progress live. Optional AI features (in-context definitions, sentence breakdowns and sentence translations) are part of Lingaku Premium. Everything described above is free. Dictionary data from JMdict, JMnedict and KANJIDIC2 (Electronic Dictionary Research and Development Group), CC-CEDICT and the Unihan database, example sentences from Tatoeba, stroke order from KanjiVG.