JXL contains FLIF, one of the most efficient lossless formats. Source: about 1 year ago

As for lossless image compression, FLIF is based off of a deriviative of CABAC (used by H264) called MANIAC (which I couldn't find any information for). As mentioned on the website in general it outperforms PNG at around 33% smaller files. Interestingly enough, FLIF is a predecessor to JPEG-XL which is what this post is talking about. Source: over 1 year ago

I'm a huge fan of AV1 for video, but for images JPEG-XL is simply the better codec than AVIF. If you've not actually looked closely at a comparison and are just on the side of AVIF in this debate because it's based on AV1 (and maybe you hate HEVC / HEIC), I'd urge you to look closer. Jpeg XL is pretty unrelated to Jpeg, Jpeg 2000 and Jpeg XR and instead a successor of Google Guetzli, FLIF and newer research. Source: over 1 year ago

Legally they had no choice because jpeg xl is based on flif.info and https://github.com/google/pik but the flif has LGPL license which should open source the rest.. However regardless the media group didn't really do much other than write some standard and slap their name on it. Wasn't their work. Source: almost 2 years ago

No this is a niche format like FLIF was flif.info which got embedded in jpeg xl along with other image technologies. The tech behind QOI and many other things is great, and hopefully the research goes into usage in the future but it won't get mass adoption. Source: almost 2 years ago

JPEGLI = A small JPEG The suffix -li is used in Swiss German dialects. It forms a diminutive of the root word, by adding -li to the end of the root word to convey the smallness of the object and to convey a sense of intimacy or endearment. This obviously comes out of Google Zürich. Other notable Google projects using Swiss German: https://github.com/google/gipfeli perceptual JPEG encoder Guetzli = Cookie... - Source: Hacker News / 2 months ago

A JPEG encoder developed by Jyrki Alakujala, Robert Obryk, and Zoltán Szabadka, and released by Google in 2017. Guetzli specializes in high-end image quality where it is claimed to produce significantly smaller files than prior encoders at equivalent quality, albeit at very low speed. It is named after the Swiss German expression for biscuits, in line with the names of other compression technology from Google.... - Source: dev.to / over 1 year ago

I'm a huge fan of AV1 for video, but for images JPEG-XL is simply the better codec than AVIF. If you've not actually looked closely at a comparison and are just on the side of AVIF in this debate because it's based on AV1 (and maybe you hate HEVC / HEIC), I'd urge you to look closer. Jpeg XL is pretty unrelated to Jpeg, Jpeg 2000 and Jpeg XR and instead a successor of Google Guetzli, FLIF and newer research. Source: over 1 year ago

Guetzli. Looks like development has stalled? Perhaps for just that reason. https://github.com/google/guetzli. - Source: Hacker News / almost 2 years ago

I've never had much luck using jpegoptim. In most cases it's only removing the metadata, which isn't much on high-res files. Guetzli is nice, if you don't have too many images to recompress (quite slow): https://github.com/google/guetzli. - Source: Hacker News / almost 2 years ago