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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 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.

Reducing JPG File size

There’s lots of neat tricks for reducing the size of JPGs in this article by Colt McAnlis:

With the Average webpage size now larger than the original DOOM game, you have to start asking where all the bytes are coming from, and how you can do more to toss those things out.

While JPG compression is impressive in its’ own right, how you use it in your application can influence the size of these files significantly. As such I’ve assembled a handy collection of things that can help you squeeze out those last bits, and make a better experience for your users.

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