This is wonderful! Just last night I realized I had a need for something like this, while using the "words containing" feature of Pleco. I find I can remember characters much better if I see their relationship to other characters. Then I recognized hey this is a graph, that would be a cool thing to play with.

I learned intermediate level Chinese 40 years ago, back when paper dictionaries with pinyin were the hot new thing. Then I forgot it all. I recently stumbled across Pleco, which astonished me so much I started learning Chinese again.

I'm looking forward to using HanziGraph in my studying.