1
Step 1Get a Free API Key
Create a free Google Gemini API key in under a minute. No credit card required.
今すぐ始めよう
Susume
Nihongo
進め日本語
AI と一緒に日本語をマスターしよう
This is your all-in-one platform to centralize and streamline your Japanese learning journey.
We combine the latest FSRS spaced repetition algorithm for scientifically optimized review with intelligent AI that provides contextual explanations, example sentences, and real-time assistance, especially designed to help you succeed on the JLPT exam.
Completely free. No ads. No account needed.
Free foreverNo account requiredLocal First
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.
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AI Japanese Teacher
Type any phrase and get contextual translations, grammar breakdowns, and natural variations, all powered by Gemini AI.
Start a lesson →本
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 →雲
Live Sensei
Speak with an AI Japanese coach in realtime. Choose a focused practice mode, roleplay real scenarios, and get immediate speaking feedback.
Start chatting →記
FSRS Flashcards
Review vocabulary with the same spaced-repetition algorithm used by Anki. Each card adapts to your memory for optimal retention.
Review cards →語
Vocabulary Quiz
Learn over 1,200 JLPT N5, N4 & N3 vocabulary words. Quiz yourself on meanings, review readings, types, and example sentences.
Study vocabulary →字
Kanji Quiz
Master 186 JLPT N5, N4 & N3 kanji with interactive quizzes. Track your streak, see meanings, readings, and example sentences.
Practice kanji →あ
Kana Quiz
Learn all Hiragana and Katakana characters through timed quizzes with progress tracking and visual review grids.
Learn kana →文
Grammar Quiz
Master 209 JLPT N5, N4 & N3 grammar points with interactive quizzes. Learn meanings, patterns, and example sentences.
Study grammar →音
Native Pronunciation
Hear authentic Japanese pronunciation generated by Gemini TTS. Build accurate listening skills from the very start.
Listen →試
Special
JLPT Test Practice
Train with JLPT-style questions and realistic exam flow for N5/N4. Practice under timed conditions and strengthen your test-day confidence.
Open JLPT page
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New to Japanese? Start Here
Writing systems, grammar basics, particles, and verb conjugation in one clear guide.
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Japanese Learning Roadmap
From N5 to N1: hybrid-immersion strategy with level-by-level breakdowns and hour estimates.
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Japan Tips & Culture Guide
Shopping, vacations, part-time work, first dates, dining, and the everyday rules that make Japan feel easier.
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Manifesto
Why Susume Nihongo Exists
I am a Japanese language student and I used many different tools to support my learning. Recently, I also started incorporating AI into this process. However, managing so many platforms became exhausting, many of them paid, and often with more advertising than actual Japanese learning content.
As an engineer, I wanted to create something simpler, more efficient, and free. I chose to use Google’s AI because anyone can access the free tier of Gemini, and it offers a wide range of AI capabilities, including Live and TTS features.
Susume Nihongo is not meant to replace a good textbook or a great teacher, but rather to serve as a centralized complement to your studies. I hope this project can contribute in some way to your journey of learning Japanese.
I’m currently at the N4 level and will continue expanding the platform with new content as I progress.
Quick setup
Start in 3 Simple Steps
No installation needed. Everything runs in your browser.
2
Step 2Enter Your Key
Paste it into the settings panel of the AI Teacher. Your key stays stored locally - never sent to our servers.
3
Step 3Begin Learning
Type any phrase and receive a full Japanese lesson: translation, grammar, pronunciation, and more.
Free to startNo install requiredPrivacy-first setup
Some limits are set by Google and may change. If you hit limits, consider upgrading your API plan or optimizing usage.
Cloud Sync Pro
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.
Your progress is saving locally on your device, for no subscription. This is just an extra feature, not required to use the platform.
- Cloud sync: Flashcards, history, settings, kanji, grammar & all data 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
$5.00
per month · cancel anytime
This price is just for maintenance and server costs. Susume Nihongo will always be free to use without a subscription.
- Cloud sync across all devices
- Anki CSV export
- Support development
Sign in with Google inside the app to subscribe
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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.
日
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