Susume Nihongo
進め日本語
Your free AI-powered companion for learning Japanese — master natural phrases, build real confidence, and advance at your own pace.
What is Susume Nihongo?
Susume Nihongo (進め日本語) means "Advance in Japanese" — and that's exactly what this platform helps you achieve.
Enter any phrase or sentence and Gemini AI will generate a comprehensive Japanese translation with detailed grammar explanations, natural variations, and authentic pronunciation. It's designed for learners who want to go beyond textbooks and understand how Japanese is really spoken.
Key Features
Everything you need to learn Japanese effectively, all in one place.
AI-Powered Lessons
Contextual translations that go beyond literal word-for-word conversion, giving you natural, conversational Japanese.
Grammar Breakdown
Every lesson includes detailed grammar explanations, helping you understand the structure and rules behind Japanese sentences.
FSRS Flashcards
Automatically generate flashcards from your lessons with the same spaced-repetition algorithm used by Anki for optimal retention.
Native Pronunciation
Hear authentic Japanese pronunciation with integrated Gemini TTS technology. Build accurate listening skills from the start.
Kanji & Kana Quizzes
Master JLPT N5 & N4 kanji plus all hiragana and katakana through interactive quizzes with progress tracking.
Multiple Variations
Learn different ways to express the same idea — from casual to formal registers — and understand the nuances of each.
Google Gemini API Key Required
To use Susume Nihongo, you need a free API key from Google AI Studio. Copy your key and enter it in the app settings to enable translations and text-to-speech. It's free, takes under a minute, and no credit card is required.
Important Information
AI Accuracy Note
AI models may make mistakes, and translations may not always be perfect. Translations aren't literal and may vary, as the algorithm reflects cultural aspects of Japanese. Responses are polite and friendly — you'll want to understand how they differ from formal Japanese. Please review results carefully and use your judgment.
API Limits
You're using a free Google Gemini API key, so there may be limits on how much and how often you can use it. Check your usage in Google AI Studio.
Security & Privacy
All your settings, history, and flashcards are securely stored locally in your browser. No personal data or content is sent to external servers except for Gemini API requests. Your privacy is protected — nothing is uploaded or shared.
Ready to Start Learning?
今すぐ勉強始めよう — Start studying right now. It's free, runs in your browser, and takes only a minute to set up.
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