Credits & Data Sources

KanaDojo is built on trusted Japanese language data sources and open-source technologies. We're grateful to the maintainers and contributors who make these resources available.

Japanese Language Data Sources

JMdict

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Japanese-English dictionary database maintained by the Electronic Dictionary Research and Development Group. Powers our translation features.

License: Creative Commons Attribution-ShareAlike 4.0

KANJIDIC

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Comprehensive kanji character database with readings, meanings, and metadata. Used in our kanji learning features.

License: Creative Commons Attribution-ShareAlike 4.0

Kuroshiro

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Japanese language utility library for converting between Japanese scripts and romaji. Enables our pronunciation support.

License: MIT License

SQL.js

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SQLite compiled to JavaScript via Emscripten. Powers our Anki deck converter for client-side database processing.

License: MIT License

JLPT Vocabulary Lists

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Curated vocabulary lists organized by JLPT levels (N5-N1) from community-maintained sources.

License: Public Domain / Community Maintained

Wanakana

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JavaScript library for detecting and transliterating Hiragana, Katakana, and Romaji. Used in our text input processing.

License: MIT License

Technologies & Frameworks

Next.js

React framework for production-grade web applications

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TypeScript

Typed JavaScript for enhanced code quality

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Zustand

State management for React applications

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Acknowledgments

Special thanks to the Electronic Dictionary Research and Development Group (EDRDG) led by Jim Breen, whose decades of work creating and maintaining Japanese language databases has enabled countless learning tools and applications.

We also thank the broader open-source community for creating and maintaining the libraries and tools that power modern web applications. Without their contributions, projects like KanaDojo wouldn't be possible.

License & Attribution

KanaDojo respects the licenses of all data sources and libraries used. Where required by license terms, we provide proper attribution:

  • JMdict and KANJIDIC data are used under the Creative Commons Attribution-ShareAlike 4.0 International License.
  • All open-source libraries are used in accordance with their respective licenses (MIT, Apache 2.0, etc.).
  • KanaDojo's original code and content are created by the development team and released under our own license terms.

If you have questions about our use of any data source or library, please contact us through our About page.

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