How to create an NFT on the blockchain?

Create your NFT by choosing a blockchain, setting up a wallet, selecting a marketplace, and minting your digital asset with metadata and royalties.

Jul 20, 2025 at 10:21 pm

Understanding the Basics of NFT Creation

Before diving into the technical steps, it is essential to understand what an NFT (Non-Fungible Token) is. An NFT represents a unique digital asset stored on the blockchain, typically using Ethereum or other smart contract platforms. Each NFT contains distinct information that makes it irreplaceable and non-interchangeable. This uniqueness is what gives NFTs value in digital art, collectibles, virtual real estate, and more.

To create an NFT, you need to mint it on a blockchain. The process involves uploading a digital file (like an image, audio, or video), adding metadata, and recording it as a token on the blockchain. This token is then owned by a wallet address and can be bought, sold, or transferred.

Choosing the Right Blockchain Platform

The blockchain platform you choose will affect the cost, speed, and reach of your NFT. The most popular blockchain for NFT creation is Ethereum, due to its mature ecosystem and support from major marketplaces like OpenSea, Rarible, and Mintable. However, other blockchains such as Binance Smart Chain, Solana, and Tezos are gaining popularity due to lower transaction fees and faster processing times.

Each blockchain has its own token standards. For example, Ethereum uses ERC-721 and ERC-1155, while Binance Smart Chain uses BEP-721 and BEP-1155. These standards define how NFTs behave and interact with smart contracts.

When selecting a blockchain, consider the following:

• Transaction fees (gas fees)
• Marketplace compatibility
• Community and user base
• Environmental impact

Setting Up a Digital Wallet

To interact with the blockchain, you need a digital wallet that supports NFTs. MetaMask is the most widely used wallet for Ethereum-based NFTs. Other options include Trust Wallet, Coinbase Wallet, and WalletConnect-compatible wallets.

Setting up a wallet involves the following steps:

• Download and install the wallet app or browser extension
• Create a new wallet and securely store the recovery phrase
• Fund the wallet with cryptocurrency (e.g., ETH for Ethereum) to pay for gas fees
• Connect the wallet to your chosen NFT marketplace

Ensure that your wallet is compatible with the blockchain you selected. For instance, if you're using Solana, you may need to use Phantom Wallet instead of MetaMask.

Selecting an NFT Marketplace

Once your wallet is ready, choose an NFT marketplace where you can upload and mint your NFT. Some of the most popular platforms include:

• OpenSea
• Rarible
• Foundation
• LooksRare
• Blur

Each platform has its own interface and minting process, but most follow a similar flow:

• Connect your wallet
• Upload your digital file
• Add metadata (name, description, properties, etc.)
• Set royalties (if applicable)
• Mint the NFT by paying gas fees

Some platforms offer lazy minting, where you can list your NFT without paying gas fees upfront. The fees are instead paid by the buyer when the NFT is sold.

Creating and Minting the NFT

Now that your wallet is connected and you're on the marketplace, it’s time to create your NFT. Follow these steps carefully:

• Click on the 'Create' or 'Mint' button
• Upload your digital file (image, audio, video, etc.)
• Fill in the NFT details: name, description, properties, levels, and stats if applicable
• Choose the blockchain and collection where your NFT will reside
• Set the number of copies (1 for unique NFTs or more for editions)
• Adjust the royalties percentage for future sales
• Review the details and click 'Mint'
• Approve the transaction in your wallet and pay the gas fee

After the transaction is confirmed, your NFT will be live on the blockchain and visible in your wallet and the marketplace.

Post-Minting Actions and Considerations

Once your NFT is minted, it’s important to manage it properly. You can choose to:

• List it for sale at a fixed price
• Create an auction
• Transfer it to another wallet
• Burn it (if you no longer want it)

Additionally, consider promoting your NFT through social media, Discord communities, or NFT newsletters to attract potential buyers. Always keep your wallet secure and never share your private keys or recovery phrases.

Frequently Asked Questions

Q: Can I create an NFT without paying gas fees?

A: Yes, some platforms like OpenSea and Rarible offer lazy minting, which allows you to list your NFT without paying gas fees upfront. The fees are covered by the buyer when the NFT is sold.

Q: What file formats are supported for NFT creation?

A: Most platforms support common formats such as PNG, JPEG, GIF, MP4, MP3, and GLB for 3D models. File size limits vary by platform, usually ranging from 30MB to 100MB.

Q: How do I prove ownership of my NFT?

A: Ownership is verified through your wallet address on the blockchain. When you mint an NFT, it is linked to your wallet address, and only the owner of that wallet can transfer or sell the NFT.

Q: Can I edit my NFT after it's minted?

A: Once an NFT is minted on the blockchain, the metadata and file cannot be changed. However, some platforms allow you to update certain attributes if the smart contract was designed to support that functionality.