"generating" a new cryptocurrecy or a fork is useless, I never seen a generated cryptocurrency being successful in the market, most either being dead straight away or just used for a hobby purposes.
This kind of website also the reason why Bitcoin has dozens of forks in short time, and the one who manages to launch in the market are not generated like this

Then again, if you're a hobbyist or just curious how this works it's a good reference.