Susume Nihongo
進め日本語
AI と一緒に日本語をマスターしよう
Your AI-powered companion for learning Japanese. Master natural phrases, improve fluency, and build real confidence — with Hiragana, Katakana, JLPT Kanji, grammar, pronunciation, and smart spaced-repetition flashcards. All in one app. Free, no ads, no tracking.
All tools in one place
Everything You Need to Learn Japanese
A complete toolkit with AI at its core. Practice, review, and retain vocabulary like never before. All materials are completely free and login is not required.
AI Japanese Teacher
Type any phrase and get contextual translations, grammar breakdowns, and natural variations, all powered by Gemini AI.
Start a lesson →Study Book
A structured guide from writing systems to verb conjugation. Work through chapters at your own pace with progress tracking and an AI assistant.
Read book →FSRS Flashcards
Review vocabulary with the same spaced-repetition algorithm used by Anki. Each card adapts to your memory for optimal retention.
Review cards →Vocabulary Quiz
Learn over 1,200 JLPT N5 & N4 vocabulary words. Quiz yourself on meanings, review readings, types, and example sentences.
Study vocabulary →Kanji Quiz
Master 186 JLPT N5 & N4 kanji with interactive quizzes. Track your streak, see meanings, readings, and example sentences.
Practice kanji →Kana Quiz
Learn all Hiragana and Katakana characters through timed quizzes with progress tracking and visual review grids.
Learn kana →Grammar Quiz
Master 209 JLPT N5 & N4 grammar points with interactive quizzes. Learn meanings, patterns, and example sentences.
Study grammar →Native Pronunciation
Hear authentic Japanese pronunciation generated by Gemini TTS. Build accurate listening skills from the very start.
Listen →Sync & Anki Export
Sync your progress across every device and export your flashcards as Anki-compatible CSV files.
Subscriber featureNew to Japanese? Start Here
Writing systems, grammar basics, particles, and verb conjugation in one clear guide.
Japanese Learning Roadmap
From N5 to N1: hybrid-immersion strategy with level-by-level breakdowns and hour estimates.
Japan Tips & Culture Guide
Shopping, vacations, part-time work, first dates, dining, and the everyday rules that make Japan feel easier.
Quick setup
Start in 3 Simple Steps
No installation needed. Everything runs in your browser.
Get a Free API Key
Create a free Google Gemini API key in under a minute. No credit card required.
Enter Your Key
Paste it into the settings panel of the AI Teacher. Your key stays stored locally — never sent to our servers.
Begin Learning
Type any phrase and receive a full Japanese lesson: translation, grammar, pronunciation, and more.
Sync Your Progress
Across Every Device
Study on your laptop, review on your phone. With Cloud Sync Pro your flashcards, history, settings, kanji and book progress are always up to date, no matter where you are.
- Cloud sync — Flashcards, history, settings, kanji, grammar & vocabulary progress synced automatically
- Anki export — Download your flashcards as Anki-ready CSV files
- Support development — Help keep Susume Nihongo free and actively maintained
Cloud Sync Pro
per month · cancel anytime
- Cloud sync across all devices
- Anki CSV export
- Automatic backup & restore
Sign in with Google inside the app to subscribe
Install Susume Nihongo
Add to your home screen for instant access. Opens directly to the AI Teacher, works offline, and feels like a native app.
今すぐ始めよう
Already know some Japanese? Jump right in.
Free, runs in your browser, takes only a minute to set up.
Launch AI Teacher