Cloud Photos Optimization

Suppose your web tool doesn't compress photos automatically, then you can use https://tinypng.com/, but this is limited to 20 images of 5 MB max. each.

Whatever is described below, the smartest compression remains !TinyPNG.

TOOL	ORIGINAL SIZE	DURATION	SIZE AFTERWARDS
Caesium	705 MB	quick	163 MB
FileOptimizer	705 MB	slow, 43 min.!	686 MB
JPEG Compressor by pikazho	705 MB	quick	155 MB
MassImageCompressor 80% quality, 70% size	705 MB	quick, 39 sec.	55 MB
PNGoo	705 MB		814 MB... (what the f***!)

https://squoosh.app/???