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By
Chris Coyier
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 to consider that it's up to 100 times slower as Mozilla's mozJPEG encoder and in many cases, it doesn't achieve the same quality at the same file size
Source: Kornel Lesiński, the guy behind ImageOptim, who says Guetzli will be incorporated into the next version.