I use ACDSee and find that the default settings used when you "save as" jpeg actually are about spot on for uploading to the web. It seems to have a good compression ration without losing much from the image.

The supreme irony of life is that hardly anyone gets out of it alive.
Robert A. Heinlein

11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz   3.50 GHz
64.0 GB (63.9 GB usable)
Geforce RTX 3060 12 GB
Windows 11 Pro