How to buy, create and sell NFTs? The Complete Guide

Updated September 24, 2021

You’ve probably heard of the Non-Fungible Token Buzz, or NFT.

Mike Winkelmann, the American digital artist known as Beeple, made headlines earlier this month when he sold an NFT for $ 69 million. And it goes beyond art. People spend millions of dollars on NFT collectibles of all kinds, from sports trading cards and highlight reels to digital houses, augmented reality sneakers and music.

In this tutorial, I will show you how to buy, create and sell NFTs.

What is an NFT? An overview

An NFT is a new type of digital asset. Ownership is registered on a blockchain which is a digital ledger similar to the networks that underpin bitcoin and other cryptocurrencies.

Each NFT is unique and cannot be duplicated. So you can think of them as unique digital items that no one else owns. Of course, people can have an image of a work of art that you bought as an NFT, for example, but they don’t own the original. This is what makes them attractive. Due to the rarity of some art NFTs, you may be able to sell one later for more expensive and make several thousand dollars. Just like you would with fine art.

You can use different currencies to buy NFTs. The Sorare platform, for example, allows you to buy NFTs from soccer players with a credit card. But other platforms require you to buy only with some form of cryptocurrency (Bitcoin, Ethereum, Cardano, etc.).

In my guide, I’ll show you how to get into the NFT craze using the popular OpenSea platform. I will also walk you through how to turn digital assets into NFT and sell them, in case you are an artist wanting to sell your work online.

Where to buy NFTs?

You have certainly heard of all these artists and others who sell NFTs. You want to create your own collection. Where do you start?

You can buy them online in different markets. OpenSea is the most important. Think of it as an online gallery where you can browse digital art, collectible cards, and other collectibles.

It works like an auction house, where you bid on items and hope to be the winner, but some ads allow you to “buy now” for a fixed price. I will explain to you how to buy NFTs on OpenSea, but before that we have to do some things first.

If you are a football fan and want to buy, collect or trade digital cardss limited edition of your favorite footballer, Sorare is your destiny. Sorare is a 100% French NFT platform which has official licenses for 180 football clubs.

How to create a digital wallet to buy NFTs

Installer MetaMask
Installation of the MetaMask digital wallet in Chrome.

Before you start, you need to add money to a digital wallet (Crypto Wallet) that you can spend.

OpenSea uses Ether, a cryptocurrency, which you will need to purchase. Think of it like an arcade. You come in and you want to play games. But before playing the games, you need to buy tokens. Same idea here, but the tokens are called Ether. Instead of buying multiple tokens, you’ll probably start small, with fractions of Ether. As of March 25, a single Ether was worth approximately 1 362,56 Euro.

So, back to this digital wallet. OpenSea suggests using a plug-in for the Chrome browser called MetaMask. OpenSea also supports many other Crypto Wallets (Bitski, FortMatik, WalletConnect, WalletLink, Arkane Network, Dapper, Authereum, Torus).

It took me about 30 seconds to install the OpenSea plug-in and set a password. Let’s do this now.

  1. Tap the profile icon at the top right of the OpenSea website.
  2. Click on: Get MetaMask.
  1. Click on “Installer MetaMaskFor Chrome or the supported browser of your choice. This installs a Chrome plug-in.
Click on install MetaMask
  1. Click on “To start».
  2. Select “Create a portfolio».
  3. Choose “No thanksFor sharing your comments.
  4. Create your password.
Add a password in MetaMask
  1. Write the 12 word passphrase that he gives you. This is very important and it is your backup to access your account. Don’t lose it.
  1. Click on “FollowingAnd confirm the passphrase.
  2. Connect your OpenSea account to the MetaMask digital wallet you just created.
  3. Click again on “Connect».

Now you have a digital Crypto Wallet connected to OpenSea. You must now have Ether in order for you to purchase NFTs.

How to buy Ether?

Add ETH to Metamask
You will need a digital wallet to purchase NFTs.

You can use any variety of apps to buy cryptocurrency. I recommend you Coinbase which is extremely popular. But for the sake of simplicity, let’s use MetaMask to buy Ether, because we are already using it as a digital wallet and we have already connected it to OpenSea.

Create a Coinbase account

To send tokens ETH Where ERC-20 to your MetaMask wallet from a Coinbase or other wallet, you will simply need to submit a transaction to one of your accounts in MetaMask. Here are the steps to follow:

  1. Open the MetaMask extension
  2. Hover over the account name at the top of the window, which will display “Copy to clipboard»
Copy the MetaMask account number
  1. Click on the account name to copy your address
  2. Paste your address in the “recipient»Of the application from which you will send your ETH or your tokens. Here is an example using CoinBase.
Paste your address in the
  1. Select the amount you want to send, as well as any other necessary steps to complete and submit the transaction.

How to buy NFTs?

Buy NFT from opensea for the French
France to its presence on Opensea

You are now ready to bid and buy NFTs. Back to OpenSea. You can browse the galleries by pressing “Explorer“. You’ll find all kinds of images for sale, whether it’s spinning objects, flashing icons, or just sayings.

Eventually, you can come across anything you want. Suppose we like this image of Parisian cheese. Its price is 0.6237 Ether, which is approximately 1117 $ at the time of publication.

To buy it, follow these steps:

  1. Press on “Buy now».
  2. Select “Payer».
  3. Click on “TP submit».
  4. Then you must confirm a “gas taxes“. This is required by the Ethereum network to process the transaction and costs around $ 18.18. The entire transaction ends up costing 1136 $.

Now I have this Parisian Cheese in NFT.

But I don’t collect them. So let’s sell it. I will also show you how to make and sell your own NFTs.

How to create and sell NFTs?

Rarrible
I put up for sale an NFT for a photo of Porto, Portugal.

Do you own some cool digital art, or maybe a NyanCat that you are ready to sell. Let’s make it an NFT and put it on sale now. I used Rarible, because it was just a little cheaper and easier to install, and it ties into OpenSea if anyone is looking for it.

  1. Go to Rarible.com and click on “To create” top right.
  2. Create an object of single or multiple collection. The latter is for a collection, for example, of photographs or trading cards that you have created.
  3. Select “Choose a file»To download a file PNG, GIF, MP3 or another type of file. The maximum size is 30MB.
  4. Enter the price you want or leave “on sale”. I’m going to list this photo from Porto, Portugal that I bought for 0,5 Ether. After a 2.5% service charge, I’ll get the equivalent of $ 826.91. If this NFT ever sells. Sounds reasonable.
  5. Enter a name for your NFT and a description.
  6. Define your royalties. You will continue to get paid if it resells in the secondary market. This is based on the current sale price.
  7. Choose “Connect the wallet and create».
  8. Connect your wallet, which we set up in the previous section above. So, press “MetaMask”.
  9. Pay the fees “GasTo process the registration. In this case, it is $ 75.64, or 0.044091 Ether.
  10. Click on “To start upTo sign the sell order using your digital wallet.
  11. Click on “SignerIn the MetaMask pop-up window.

That’s all! Now he’s listed. In this case, you will find it on Rarible or on OpenSea by searching for “Porto, Portugal“. Offers will appear on the sales page. If it ever sells, the funds will be transferred to my digital wallet. Then I can use them to buy more NFTs or cash out using an app like Coinbase.

Protect your NFTs with a Hardware Wallet

Ledger

I strongly recommend that you secure your crypto NFTs on a Hardware Wallet like Ledger or Trezor. These physical cryptocurrency wallets allow you to store your private keys on a secure hardware device. Private keys are pieces of critical information used to authorize outbound transactions on the blockchain network. The main role of such a device is to have total isolation between the private keys and your easily hacked computer or smartphone.

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