Japanese learning tools — data attribution

Kuromoji.js: Takuya Asano and contributors, Apache 2.0.
Dictionary: IPADIC, Nara Institute of Science and Technology / ICOT.
See IPADIC.txt and kuromoji.txt in this directory for full notices.
Derived verb lookup covers supported modern classes, not all IPADIC classes.

Kanji meanings, stroke counts and readings: KANJIDIC2, copyright James William Breen
and the Electronic Dictionary Research and Development Group (EDRDG).
https://www.edrdg.org/wiki/index.php/KANJIDIC_Project
https://www.edrdg.org/edrdg/licence.html
Creative Commons Attribution-ShareAlike 4.0:
https://creativecommons.org/licenses/by-sa/4.0/
Converted to compact JSON; non-Japanese readings and non-English meanings omitted.
The derived kanji dataset remains available under CC BY-SA 4.0.
Refresh monthly with scripts/generate-japanese-kanji.py using current KANJIDIC2.

Study-level estimates: Jonathan Waller / Tanos, via David Luz Gouveia's kanji-data.
https://www.tanos.co.uk/jlpt/ — these are not official JLPT classifications.
https://github.com/davidluzgouveia/kanji-data (MIT notice in kanji-data.txt).
No WaniKani fields are used.

Stroke paths: KanjiVG, copyright 2009–2026 Ulrich Apel.
https://kanjivg.tagaini.net/
Creative Commons Attribution-ShareAlike 3.0:
https://creativecommons.org/licenses/by-sa/3.0/
SVG path data extracted, standard variants selected, markup and styling removed.
The adapted path dataset remains available under CC BY-SA 3.0.

Story excerpts, recordings and vocabulary senses come from existing Inklingo content.
JLPT vocabulary study selections and assessment questions are original Inklingo material,
not official exam items or an exhaustive exam syllabus.