Anyone who can write an APL function should be able to host it on the web.™
:Class FigureSimple : MiPageSample ⍝ Control:: _DC.Figure ⍝ Description:: Figure with caption ∇ Compose;fig :Access Public (fig←'fig' Add _.Figure).Caption←'APL Mandelbrot Set' fig.Add _.img (⊂'src' '/Examples/Data/pic4.png') ∇ :EndClass