A port of HanziGraph for Japanese. Even more WIP than HanziGraph.
An early version of the site is available.
You can also see the reddit discussion or the discussion on tofugu (it also made it onto their curated list for summer 2022). It was also recommended by The Japan Foundation, Sydney.
The examples came from Tatoeba, which releases data under CC-BY 2.0 FR, and from OpenSubtitles, pulled from opus.nlpl.eu.
Definitions were pulled from JMDict; links to their license terms are available on that page.