This page only works if your browser has jxl support. So this is at the same time an art gallery and a jxl support test page :).
JXL art is a form of procedural image generation that exploits the powerful meta-adaptive context model of JXL to produce interesting-looking images that are tiny jxl files. You can try it yourself here!
If you have made JXL Art yourself, please share it on the jxl discord and perhaps it will be added here!