Guetzli

Geutzili, Google's new open source algorithm...

...that creates high-quality JPEG images with file sizes 35% smaller than currently available methods, enabling webmasters to create webpages that can load faster and use even less data.

I've seen this fairly widely reported, and that's great because images are the main cause of web bloat these days and fighting back with tech seems smart.

I also saw Anselm Hannemann note:

This is great, but to put things into perspective, we also have …

Guetzli is a post from CSS-Tricks