[jrvidal]

Shameless plug: https://jrvidal.github.io/aes-demo/

I like this one better though.

[newscracker]

Looks nice, but an explanation of each step would be more helpful to understand it (along with a coverage of the overall algorithm). The animation was a little too quick for me to follow along.

[kdrag0n]

Minor typo: "Rinjdael" -> Rijndael