Adobe Flash- / Adobe Air-based character creator. Japanese dev, but the application uses no text (it's equally incomprehensible to operate for everyone!)

Mostly geared towards humans and humanoids; there are kemonomimi and separate paw and tail options, however most people use basic shapes to make their own character and outfit designs.

https://pochikou.fanbox.cc/posts/1594746 (https://kisekaejade.com/downloading-kisekae-2 English guide)
http://pochi.wiki.fc2.com/wiki/%E6%A9%9F%E8%83%BD%E7%B4%B9%E4%BB%8B (Japanese wiki)
http://pochi.wiki.fc2.com/wiki/FAQ (Japanese frequently-asked-questions)
https://boards.4chan.org/e/thread/2596265 (long-running /ecchi/ thread)