Kornel Lesi?ski (@pornelski). Web developer since �best viewed in AWeb in 640�256.� Creator of ImageOptim. London Standardista. Mozilla has done a study of image formats and concluded that WebP and JPEG XR are not a big-enough improvement over well-optimized JPEG. In the study only HEVC (H.265) was significantly better, but it’s a patent-encumbered format, so it can’t be used freely (shhhh!) It se
