Chrome extension
The web is your Japanese textbook
Highlight the words you are learning on any page, review them with spaced repetition, and prove you really know a kanji by drawing it stroke by stroke.
Study where the words actually live
The subtitles become your teacher
Press 日 on the player and every subtitle line turns tappable: look a word up, add it to a deck and grade your memory without leaving the episode. Native tracks on YouTube, Netflix and Prime Video — your own subtitle files anywhere else.
YouTubeNetflixPrime Video+ your own files
Hover to reveal the translation — just like in the player.
Your words light up on every page
Every word in your decks is highlighted while you browse. Tap one to see it, grade it, or add the next word you meet.
One-tap dictionary in your language
Add a card and the offline dictionary fills the reading, meaning and even a Japanese definition — in your language, not just English.
Honest spaced repetition
Reviews are scheduled when your memory needs them. Seeing a word on the web helps, but the top levels must be earned in real reviews.
Draw the kanji. For real.
The guided stroke practice makes you hand-write each character with progressive assistance — from traced guides to pure memory. If you can draw it, you know it.
How it works
- 1
Install the extension
One click. Your data stays in your browser.
- 2
Add words while you browse
Select any Japanese word, add it to a deck with auto-filled definitions.
- 3
Review and draw
Answer when reviews are due and unlock top levels by drawing the kanji.
From the community
Decks published by other learners, ready to import.
Browse all decksSupport the project
Nihongo Learn is free and made by one person. The core — reviews, highlighting, video mode, stroke practice — is free and stays free. Optional paid extras (like cloud sync and mobile review) may come later to support the project. If it helps you, you can buy me a coffee.
Buy me a coffee