This is a Java version of my tiny (128 bytes) Julia fractal demo.
A Julia set is made of the points z of the complex plane
for which the sequence z, z2+c, (z2+c)2+c, ... never runs away to infinity;
every parameter c gives a fractal of its own. The darker a point, the longer it takes to run away.
Click the picture to zoom in at that point or Shift+click to zoom out (added with AI in 2026).