Do I need to pay to upload my art?

Hello, I am Brazilian, I live in a poor place but recently I heard about this type of service, I would like to upload some arts that I did, but I would not need to pay for it, because I do not have enough money, I only have the money to pay for cyber coffee

You do need ETH to pay to convert your art to NFT. That money is for the process, it does not go to this website. A couple of days ago I paid almost $100 in ETH equivalent to convert one of mine to NFT. You can also find me on twitter as BishopX_NFT.