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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
Your all-in-one platform for a focused Japanese-learning journey.
We combine the latest FSRS spaced-repetition algorithm for scientifically optimised review with intelligent AI that provides contextual explanations, example sentences, and real-time assistance, especially designed to help you succeed on the JLPT.
Completely free. No ads. No account needed.
Free foreverNo account requiredLocal first
See it in action
How Susume Nihongo works
Three tools, one workflow. Each demo plays on its own — or click straight into it and drive.
Type your phrase here…
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Step 1 of 3·Type any phrase, in any language you already speak.
A scripted preview you can click through. Nothing here calls the AI.
All tools in one place
Everything you need to learn Japanese
A complete toolkit with AI at its core. Practise, review, and retain vocabulary like never before. All materials are completely free and no sign-in is 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 real time. Choose a focused practice mode, role-play 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 more than 1,200 JLPT N5, N4 and N3 vocabulary words. Quiz yourself on meanings, readings, types, and example sentences.
Study vocabulary →字
Kanji Quiz
Master 186 JLPT N5, N4 and N3 kanji with interactive quizzes. Track your streak and see meanings, readings, and example sentences.
Practise 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 and 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 a realistic exam flow for N5/N4. Practise 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: a hybrid-immersion strategy with level-by-level breakdowns and time 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 used many different tools to support my learning. Adding AI helped, but managing so many platforms became exhausting—many were paid and contained more advertising than Japanese-learning content.
As an engineer, I wanted to create something simpler, more efficient, and free. I chose Google AI because anyone can access Gemini’s free tier, which includes a broad range of capabilities such as Live and TTS.
Susume Nihongo is not meant to replace a good textbook or teacher. It is a central complement to your studies, and I hope it supports your Japanese-learning journey.
I am currently at N4 and will keep expanding the platform as I progress.
Quick setup
Start in 3 simple steps
No installation needed. Everything runs in your browser.
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Step 2Enter your key
Paste it into the AI Teacher settings. Your key stays on your device and is never sent to our servers.
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Step 3Begin learning
Type any phrase and receive a complete 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 reach them, consider upgrading your API plan or optimising usage.
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Install Susume Nihongo
Add it to your home screen for instant access. It opens directly to the AI Teacher, works offline, and feels like a native app.
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今すぐ始めよう
Already know some Japanese? Jump right in.
Free, browser-based, and ready in just a minute.
Launch AI Teacher