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Data sources & licences
This page lists the data sources and open-source licences used by the name converter and Japanese text reader.
01
Japanese kanji reading data
The Japanese on-reading map is derived from KANJIDIC2, maintained by EDRDG. NameFerry extracts Japanese on-readings, removes duplicates and sorts entries by character. The derived reading data remains under CC BY-SA 4.0.
02
Open-source software
Chinese variant conversion uses opencc-js/OpenCC, Pinyin uses pinyin-pro, Kana romanisation uses WanaKana, and the site is built with Astro.
Read complete third-party licences03
Stroke diagrams & animation
KanjiVG © 2009–2026 Ulrich Apel · CC BY-SA 3.0
Paths extracted, recoloured and animated; adapted diagrams and data use the same licence.
04
Fonts for downloaded and printed cards
Name cards use self-hosted Noto Sans CJK 2.004 under the SIL Open Font License 1.1. Fonts load only when making a card; website text keeps its existing font settings. The license permits commercial use and image creation. Redistributed font files must retain their license and copyright notices.
05
Japanese text analysis and reading dictionary
The Japanese text reader tokenises passages locally in your browser with Kuromoji 0.1.2 and its bundled mecab-ipadic 2.7.0-20070801 dictionary. Kuromoji code is licensed under Apache-2.0. The dictionary has separate NAIST/ICOT notices and terms; it is not covered by the same code licence. The original notices are distributed with the dictionary, and code and dependency licences appear in the complete third-party licence file. This tool currently provides no Chinese definitions and includes no Chinese-definition dictionary.