Are there any emoji maker apps?

[Dracindo]

In a nutshell, I'm Twitch streamer who made it to affiliate and I'm still trying to make my own emotes, but no matter how hard I try or follow guides and use all tips given to me, I can't create anything I like, which is mainly because the quality is always bad when I make my emotes in Photoshop, on a big sized file. "Make the image in a large window, and then shrink it down". I do that, and it's never clearly visible what kind of emote it should be.

So I was curious if anybody, by any chance, know of an app that makes it easy (or easier) to make you own emotes.