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.

Start learning

Free foreverNo account requiredLocal first

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.

師

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

あ

New to Japanese? Start here

Writing systems, grammar basics, particles, and verb conjugation in one clear guide.

道

Japanese Learning Roadmap

From N5 to N1: a hybrid-immersion strategy with level-by-level breakdowns and time estimates.

旅

Japan Tips & Culture Guide

Shopping, vacations, part-time work, first dates, dining, and the everyday rules that make Japan feel easier.

志

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.

Step 1

Get a free API key

Create a free Google Gemini API key in under a minute. No credit card required.

Open Google AI Studio

Step 2

Enter your key

Paste it into the AI Teacher settings. Your key stays on your device and is never sent to our servers.

Open AI Teacher settings

Step 3

Begin learning

Type any phrase and receive a complete Japanese lesson: translation, grammar, pronunciation, and more.

Launch AI Teacher

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.

Cloud Sync Pro

Sync your progress across every device

Study on your laptop and review on your phone. With Cloud Sync Pro, your flashcards, history, settings, kanji, grammar, and book progress stay up to date everywhere.

Your progress is saved locally on your device without a subscription. Cloud Sync is optional and not required to use the platform.

Cloud sync: Flashcards, history, settings, kanji, grammar, and all progress sync automatically.
Anki export: Download your flashcards as Anki-ready CSV files.
Support development: Help keep Susume Nihongo free and actively maintained.