TheFrenchPlumbot Sorry, I seem to have missed your previous post. This is the tool you want (I use it myself and it's easy):
https://www.zindasgoldensims.com/
Replace the first image with whatever you want to use. You'll want to resize it so the site doesn't distort it. Anything square should be fine, although it might get blurry if it's too high-definition.
I'm pretty sure that for avatars, the site only accepts sims, as in, saved CAS template sims.
okay so now I have another issue, the sims dont want to upload at all, will make another post asap
