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NFT Tutorials

How to Create NFT on OpenSea Marketplace [Update: Free Minting]


Before knowing how to create NFT on OpenSea, You have to know what NFTs are, non-fungible tokens which are unique digital assets. They offer the digital certificate of ownership for a digital asset. Artists can use an NFT to make an item out of anything digital. As an example, NFTs can be used for skins in a video game, graphic design art, music, videos, pictures, etc. Therefore, although NFTs could exist in the same collection, game, platform, or else, no two of them are identical. Once these non-fungible tokens are created they can then be traded between a buyer and seller without the need for a third party like exhibitions. That is how NFTs find their value: more potential buyers and better pays!

Like any other trades, contracts are highly important here, too.

What are the most valid contracts?

ERC-721 was first developed as a blueprint by Ethereum. It is a smart contract token standard for all non-fungible digital assets on Ethereum blockchain. ERC-721 enables software developers to easily deploy NFTs and ensure their compatibility with the ecosystem, exchanges and wallet services. Once smart contracts are made for NFTs and a code is deployed, it is permanently published into a token on the blockchain such as Ethereum. Since the creators get the power through token contracts by cutting out others to sell their artwork or collect their royalties, they can make better profits on their sells.

Why to choose OpenSea to create NFTs is on of a top marketplaces for digital goods, including collectibles, gaming items, digital art, and other digital assets that are created and saved on a blockchain like Ethereum. Among several places to create and trade NFTs, Open Sea seems to be one of the best because it is the most popular site and also easy to use. Further, it has few features more than other sites which make it very exciting to content creators, artists and others.

steps to create your account on OpenSea

Get your MetaMask

First thing first, you need to have MetaMask installed and learn how to use it. MetaMask is an Ethereum wallet that plugs into your browser. In order to use the blockchain, you need to install a mobile distributed application (dApp) browser. Here are the steps to take and install MetaMask on the Chrome browser.

  • Go to the Metamask website.
  • Click “Get Chrome Extension” to install Metamask.
  • Click “Add to Chrome” in the upper right.
  • Click “Add Extension” to complete the installation.

when you see the fox logo on the upper right hand corner of your browser, you make sure Metamask is installed and ready to use. Then, you need to install a wallet (or “vault” as Metamask calls it) to hold your cryptocurrencies. To do so,

  • click on the Metamask logo in the upper right hand corner of your Google chrome browser.
  • Read and agree to the terms and conditions (2 to 3 pages worth of terms).
  • Enter a password and click “Create” to create your wallet.
  • A set of 12 “seed words” is shown for your vault. You have to keep that in a safe place. Be careful that anybody with this recovery code can take all your Ethers away.
  • You have to pass a test. Just try to put the words after eachother as they are in your seed words set. You’ll be taken into your Metamask wallet then.

Now you join the Ethereum mainnet network. Start experimenting with Metamask with switching to one of the testnet networks by clicking “Main Network” in the left hand corner of the wallet pop up screen. Then select one of the testnets such as Ropsten Test Network or Kovan Test Network. From these Test Networks, it is made possible to safely “buy” and “send” test Ether from a faucet and begin experimenting with the blockchain.

Visit website to create NFT on OpenSea

When you enter the website, you can find Create on the top right corner of the page. Start your profile by a click on the icon and select My Profile. Once you get your account, you will be asked to sign in your MetaMask wallet.

sign in your MetaMask wallet

Now you need to create a new collection or store front. All you must do is to select My Collection to start a new list/store front of NFTs to sell on the platform and, then, prepare a collection just like creating a store on eBay.

create a new collection or store front

Once the collection is made, you are ready to create your NFT or add an already existing NFT for sale.

Since it is a tutorial instruction, let’s explain how to create a new NFT. The process is easy in First upload your image, video, audio or any 3D model and give it a name. then, supply a link to additional content to let the potential buyers learn about your product.

add an already existing NFT for sale

You also need to provide a detailed description that could be displayed with your NFT for sale on OpenSea. Further, you can add properties to your NFT (e.g. artist name, symbols, etc.) and also levels to the NFT (3 out of 10 level, etc.). adding a stats to the NFT is even a better idea.

provide a detailed description

List your NFT assets for sale

When you completed configuring your NFTs, they can be listed for sale on market place. Now it is time to:

  • Set your price
  • Schedule the listing for now or future
  • Make the listing public or private charges a fee which could be found in the summary portion of the screen.

set your sell method

Finally, your NFTs are ready to be presented to the market place and potential buyers can review them and offer their bids. Remember that you are able to sell many different items on as you know the process to Create NFT on OpenSea, lets start new business today and get benefit from all ideas to own.

How to make and sell Non-Fungible Tokens for free

Minting an NFT in any platforms charges some fees for the artists. The gas price may range from $2 on a normal day to over $40 on a crazy day. Therefore, it costs a lot for artists if they create 10 NFTs a month. But is there any solution? The answer is YES.

The first way to eliminate gas fees on minting new NFTs in OpenSea is to use Collection Manager, which allows creating NFTs completely for free, without paying any gas, and also selling them gas-free. Using Collection Manager to create an NFT means that the NFT is not transferred on-chain until the first purchase or transfer is made. This is called lazy minting. It eliminates the on-chain issuance of your NFTs from the metadata and, as the result, save some related costs.

Go to OpenSea and follow the usual steps to mint an NFT. Create your collection and select it. You will have Edit button and Add New item button. Choose the Edit and configure your setting, your commission on sale and choose your currencies on your store.

Now, click Add New Item and create your new NFT. Collection Manager allows ERC-1155 standard, a gas free minting. All done!

The second way to get your NFT out of gas fee is to switch to the Polygon network (Matic mainnet). Open your Meta Mask and choose Etherium Mainnet and click on Add Network.

Fill in the details required and click save. Select the newly added network from Matic Mainnet.

Creating the Matic mainnet, you can also add some token into it by using some faucets. Faucets are free sites that provide a very small amount of tokens to you for free so that you can get started. Then create your OpenSea account or use the one you already have. Connect to your Meta Mask and choose the Matic mainnnet.

On OpenSea, click on the Create button and add your file. Provide all required information and switch to Polygon to avoid huge gas fees.

Click Create and now you have your NFT on Polygon network. If you wish to sell your NFT, just click on Sell button. You are all set.

About Nicolle

She is an Indian Freelance writer. She loves thinking, learning, and writing about all things Web3.

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