What is Nihongo Ninja?

See why you might love learning Japanese with us.

Nihongo Ninja is both a roadmap and a collection of tools built to aid your Japanese learning journey in a way that you want. It's designed to help anime fans, drama lovers, manga readers, and more to connect with the language through content they enjoy.

The best materials, at the right time

🌷 Great Japanese resources exist across the web—but they're scattered and hard to find at the right time. We personalize them with our own tools and strategies to support your learning. We don't profit from the brilliant work already out there—that's why the core learning path stays free.

Great teachers and materials already exist. Our job is to bring the good ones to you. Then, we fill in the gaps and help make content stick—through writing practice, memory reinforcement, and scheduling designed for long-term retention.

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See how it works

Why should I use Nihongo Ninja?

  • We make it enjoyable

    Learn from content you actually want to watch—not kids' shows or beginner materials. Set up custom learning paths tailored to the exact episode, movie, or series you care about. We analyze what you need to understand that specific content, so your study time feels purposeful instead of generic.

  • If you want free, we'll give you free

    It's no secret that there are many great free and open-source tools for learning Japanese, such as Anki, Yomitan, ASBPlayer, and more. Our philosophy is this: If anything we build overlaps with these tools, we make that part free. We want to enhance your learning experience without locking you into a paid ecosystem.

  • Flexible practice that builds connections

    We use research‑backed spaced repetition like Anki, but we don't make you live in flashcards. Your activity—writing, conjugating, watching—feeds the same memory schedule. Already using other tools? Keep them—our system works alongside whatever you prefer, without locking you in.

    Writing sentences updates your SRSPractice vocabulary while consuming contentFlexible review: flashcards, quizzes, writing, multiple choice