Attribution
Medoru uses data from the following third-party sources. We are grateful to the contributors who make these resources available.
Kanji JLPT Levels
Kanji JLPT level classifications (N5-N1), stroke counts, and frequency rankings are provided by Kanji Data.
License: MIT
Copyright © davidluzgouveia. Licensed under MIT License.
Kanji Stroke Data
Kanji stroke diagrams and animation data are provided by KanjiVG.
License: CC BY-SA 3.0
KanjiVG is copyright © 2009-2025 Ulrich Apel and released under the Creative Commons Attribution-Share Alike 3.0 license. You are free to share and remix the work under the same license.
Kanji Radicals & Decomposition
Kanji radical information, character decomposition, and etymology are provided by Make Me A Hanzi.
License: CC BY-SA 4.0
Copyright © skishore. Derived from TW-Sung fonts. Licensed under Creative Commons Attribution-ShareAlike 4.0 International.
Kanji Dictionary Data
Additional kanji readings, meanings, and metadata are provided by KANJIDIC2 from the Electronic Dictionary Research and Development Group (EDRDG).
License: CC BY-SA 4.0
Copyright © EDRG (Electronic Dictionary Research and Development Group). Licensed under Creative Commons Attribution-ShareAlike 4.0 International.
About Our Data
Medoru combines these open data sources with our own learning algorithms, lesson structure, and user experience design to create a unique Japanese learning platform. The data is processed from the sources above but presented in our own interface.