Step One: Click generate and enter amount of usernames you would like generated. Step Two: Once usernames are generated, click "See inside" and right click on the list. Step Three: Press export, and it will save the list as a .txt file on your computer. Step Four: You now have plenty of 3 character usernames to choose from.
This generates every possible 3 character username with no repeats. Unfortunately, it's impossible to cross check it with Scratch, but if I can, I will figure out a way to do that.
