Action Figure Motel is a free to use website code base for people to share their original characters, worlds, art, writing, et cetera. It is designed to be highly customizable and hopefully much more intuitive then alternatives. You can get your own copy on my github and upload it to your own website and customize it to your heart's content.
Characters and worlds are marked with ratings using Adopt -a- Censor Panda, warning for some offensive "faux Chinese" names. I'm going to replace them with my own artwork ASAP, but they work well as placeholders.