OptiPNG isn't optimal

[i-fail]

OptiPNG is okay, but you can do better. I keep track of lossless PNG optimizers here:
https://olegkikin.com/png_optimizers/
Pingo and PNGOut and ZopfliPNG are the best so far.

[kosamari]

Hi @i-fail we welcome PR to add more codecs :)
Please see https://github.com/GoogleChromeLabs/squoosh/tree/master/codecs for more.

[jakearchibald]

Yeah, I'd like to add zopfli & advcomp. My preference would be advcomp because it's fast, but the project is a bit of a mess and didn't turn out easy to compile.

[i-fail]

Btw, there's a new king to the lossless PNG compression: Efficient Compression Tool by Felix Hanau
https://github.com/fhanau/Efficient-Compression-Tool

[jakearchibald]

It looks like a wrapper around existing tools like zopflipng & optipng, or am I missing something original there?

[jakearchibald]

Merging into #237