I'm the author of lossless WebP. From my personal point of view I agree, the benefits of WebP lossy were too marginal to balance off its weaknesses (I have obse

I'm the author of lossless WebP. From my personal point of view I agree, the benefits of WebP lossy were too marginal to balance off its weaknesses (I have observed somewhat unpredictable quality, tendency to blurring, occasional reduction of saturation, and limitation to 420). I like MozJPEG in the lower quality range, but I'm disappointed with it in the medium-to-high quality range (q85-100) -- there guetzli or jpegli does quite a bit better. Often MozJPEG appears worse than libjpeg-turbo in the highest quality whereas both guetzli and jpegli are substantially (~35 %) better.