My favorite maze algorithm is this one: https://cs.wellesley.edu/~pmwh/papers-fcpcg/presentation/sli...
Live demo at: https://cs.wellesley.edu/~pmwh/hydrodendron/
It allows generating an infinite maze looking at any arbitrary area of the maze, without any loops, using fractal coordinates
The webpage under the first link is an annoying maze too, as if they couldn't make a typical one-dimensional page :D
Oh I loath how that first link hijacks the back button.