[duskwuff]

Two and a half issues:

1) The handling of dynamic blocks leaves something to be desired. The parameters are left mostly undecoded. It'd be really neat if the Huffman symbols were listed somewhere, rather than just being left implicit.

2) The visualization falls apart pretty badly for texts consisting of more than one block (which tends to happen around 32 KB) - symbols are still decoded, but references all show up blank.

Large inputs make the page hang for a bit, but that's probably pretty hard to avoid.

And as an enhancement: it'd be really cool if clicking on backreferences would jump to the text being referenced.

[0d0a]

Exactly, it misses out on explaining how the fixed Huffman table is interpreted to apply symbol and distance codes, or how dynamic tables are derived from the input itself. Sure it's the hardest part, but also the more interesting to visualize. As another commenter pointed out, we are just left with mysterious bit sequences for these codes.

It would be cool if we could supply our own Huffman table and see how that affects the stream itself. We might want to put our text right there! https://github.com/nevesnunes/deflate-frolicking?tab=readme-...

[cogman10]

I think this is something that makes a decent teaching aid but doesn't work well for the uninitiated.

You need someone to spell out exactly what each of the sections are and what they are doing.