JPEG is everywhere; WebP makes it lighter
Cameras, phones, and Lightroom or social exports usually deliver JPG. It is universal, but on landing pages and product grids every hundred KB counts. Re-encoding to WebP at a sensible quality often cuts weight while looking close to the original.
SMALLIMG is not a RAW workflow replacement—it is the fast tool when you already have a final JPG and need a web version. Client-side processing means internal catalogs or photos of people never travel to an unknown converter.