How to Mint Your First NFT

DeFi & On-chain
Cập nhật2026-08-21
105

What Does Minting an NFT Mean?

NFT minting is the process of creating an NFT and publishing it on a blockchain.

Before minting, an image, song, or video is simply a digital file. After minting, the blockchain creates the corresponding token and records its smart contract address, Token ID, holder address, and related metadata.

Minting an NFT usually involves these steps:

  1. Prepare the digital work.
  2. Choose a blockchain network.
  3. Create or select an NFT smart contract.
  4. Upload the work and its metadata.
  5. Set the NFT's name, description, and attributes.
  6. Set the supply.
  7. Sign the transaction with a wallet.
  8. Pay gas.
  9. Wait for blockchain confirmation.
  10. Check the NFT in a wallet or blockchain explorer.

A creator can mint an NFT directly to their own wallet. Alternatively, they can use a Drop so buyers mint it from a public page and become its first holders.

For a broader introduction, see the complete beginner's guide to non-fungible tokens.

Do You Need Programming Skills to Mint an NFT?

Not necessarily.

You can develop a smart contract yourself or create an NFT with a no-code tool such as OpenSea Studio.

According to OpenSea's official NFT creation guide, OpenSea Studio lets users deploy an NFT smart contract and mint an NFT directly to their wallet without writing code.

No-code tools are well suited to first-time creators because they simplify contract deployment, file uploads, and metadata setup.

Developing your own contract is more appropriate when a project needs special functions, such as:

  1. Custom minting rules.
  2. Allowlist settings.
  3. Dynamic NFT attributes.
  4. A burn mechanism.
  5. Game functionality.
  6. Special licensing rules.
  7. On-chain generative art.
  8. Complex royalty or revenue-sharing mechanisms.

Custom contract development requires greater technical expertise and adds code-vulnerability, permission-configuration, and audit costs.

What Do You Need Before Minting Your First NFT?

3.1 Original or Properly Licensed Work

Images, photographs, animation, music, video, and other digital content can be made into NFTs.

The work must be your own or be covered by explicit permission from the relevant rights holder.

Do not directly turn the following into NFTs:

  1. Unauthorized film or television characters.
  2. Artwork or photography created by someone else.
  3. Music used without permission.
  4. Brand logos and trademarks.
  5. Images downloaded from the internet.
  6. Character assets from other NFT projects.
  7. AI-generated content subject to rights disputes.
  8. Works containing a person's likeness without permission.

Minting a file does not automatically give you copyright in the underlying work. An infringing NFT may still be removed from a marketplace and could lead to legal disputes.

3.2 A Web3 Wallet

A wallet connects to NFT creation platforms, deploys smart contracts, signs minting transactions, and receives newly created NFTs.

Before you begin, confirm that:

  1. The wallet supports the target blockchain.
  2. Its seed phrase or recovery method is backed up.
  3. It has enough funds for gas.
  4. You are using the correct wallet address.
  5. The browser extension or wallet app came from an official source.

3.3 Assets to Pay Gas

Deploying a smart contract and minting an NFT usually incurs blockchain network fees.

On Ethereum, you generally need ETH to pay gas. See the Ethereum asset page for related market information.

Gas varies with network congestion. Even a failed minting transaction may consume part of the network fee.

3.4 An NFT Name and Introduction

Prepare the following in advance:

  1. NFT collection name.
  2. Individual NFT name.
  3. Work description.
  4. Creator profile.
  5. Official project website.
  6. Social accounts.
  7. NFT attributes.
  8. Supply.
  9. Usage-rights statement.
  10. Sales plan.

The smart contract name and token symbol may be impossible to change after deployment, so verify their spelling before submitting the transaction.

How Should You Choose an NFT Blockchain?

Blockchains differ in transaction fees, user bases, wallet support, and NFT ecosystems.

When choosing a network, check:

  1. Which network your target users mainly use.
  2. Whether NFT marketplaces support it.
  3. Whether your wallet is compatible.
  4. The gas cost of contract deployment.
  5. Future transfer and trading fees.
  6. Transaction confirmation speed.
  7. The usability of its blockchain explorer.
  8. Whether major wallets display its NFTs correctly.
  9. Which smart contract functions the project may need later.
  10. Whether cross-chain transfer or migration may be required.

Once a blockchain is selected, an NFT usually cannot simply be moved from one network to another.

Re-creating the same work on another network produces a new smart contract and Token ID rather than a direct continuation of the original NFT.

Should You Choose ERC-721 or ERC-1155?

ERC-721 and ERC-1155 are common NFT standards in the Ethereum ecosystem.

5.1 ERC-721

The ERC-721 standard provides core functions for tracking and transferring unique NFTs.

ERC-721 is suitable for:

  1. One-of-a-kind digital art.
  2. PFP collections.
  3. Unique game characters.
  4. Web3 domain names.
  5. Specific tickets and credentials.
  6. Collectibles whose items each have a distinct number and attributes.

Even when a collection contains many NFTs, each ERC-721 NFT has its own Token ID.

5.2 ERC-1155

ERC-1155 lets one smart contract manage multiple token types and create multiple copies of the same NFT.

ERC-1155 is suitable for:

  1. Limited, multi-edition artwork.
  2. Game equipment and materials.
  3. Multiple copies of a ticket.
  4. Membership credentials.
  5. Multiple editions of one work.
  6. Digital items that require batch processing.

With a supply of 1, an ERC-1155 asset can behave as a unique NFT. With a larger supply, several wallets can hold different quantities of the same Token ID.

OpenSea currently uses ERC-1155 mainly for its direct Collection creation feature and ERC-721 mainly for Scheduled Drops. Platform support can change, so rely on the information displayed during creation.

What Is the Difference Between a Single NFT and a Collection?

A single NFT contains one work and is useful for a first test of the minting process.

An NFT collection contains multiple works connected by a common theme, creative style, or purpose.

Before creating a collection, decide on:

  1. Collection name.
  2. Smart contract name.
  3. Token symbol.
  4. Collection logo.
  5. Number of works.
  6. File type.
  7. Attribute categories.
  8. Release method.
  9. NFT supply.
  10. Copyright and usage rules.

Under OpenSea's current rules, NFTs created in the same Collection must use the same file type, and an NFT cannot be moved directly to another Collection after creation.

Plan the collection structure before deploying the smart contract.

What Is the Difference Between Direct Minting and a Drop?

OpenSea Studio supports direct Collection creation and Scheduled Drops.

7.1 Minting Directly to the Creator's Wallet

The creator deploys a smart contract, then mints the NFT to their own wallet. The NFT exists immediately after creation and can be listed for sale separately.

This method suits creators who:

  1. Are trying NFTs for the first time.
  2. Want to create only a few works.
  3. Have a small community.
  4. Want to inspect the NFT first.
  5. Want to decide independently when to sell.

7.2 Letting Users Mint Through a Drop

The creator configures a Drop page, supply, price, and schedule. Participants pay and mint during the open period, becoming the NFTs' first holders.

This method suits:

  1. Projects that already have a community.
  2. Collections intended for a public release.
  3. Releases with a presale stage.
  4. Projects requiring an allowlist or holder restrictions.
  5. Collections with a unified release date.
  6. Collections that use a reveal mechanism.

According to the official OpenSea Studio guide, direct creation mints NFTs to the creator's wallet, while a Scheduled Drop lets community members mint them directly.

How Do You Mint an NFT with OpenSea Studio?

The following process is intended for first-time OpenSea creators. The interface may change, so follow the current page.

Step 1: Go to OpenSea's Official Website

Open OpenSea through its official domain.

Do not enter an NFT creation page through an unsolicited direct message, search advertisement, group-chat QR code, or link sent by a supposed support representative.

Step 2: Connect a Wallet

Select the login or wallet connection option, then choose your Web3 wallet.

In the wallet prompt, verify that the connection request comes from OpenSea's official domain.

A normal connection or login signature should not require sending funds to an unknown address or entering a seed phrase or private key.

Step 3: Open OpenSea Studio

In OpenSea Studio, you can view your existing NFT collections or create a new project.

For your first creation, choose to create a new NFT or Collection.

Step 4: Create a Collection

To mint an NFT directly to your wallet, choose to create a Collection.

Remember that an NFT cannot be freely moved to another Collection after creation, so confirm the collection plan first.

Step 5: Enter Smart Contract Information

When creating a Collection, enter:

  1. Collection logo.
  2. Smart contract name.
  3. Token symbol.
  4. Blockchain network.

The smart contract name and token symbol are recorded on-chain and generally cannot be changed after deployment.

The logo may be updateable later, but do not confuse an editable logo with an immutable on-chain contract name.

Step 6: Deploy the Smart Contract

After checking the information, select the option to publish the contract.

The wallet will display the contract deployment transaction. Check:

  1. The current network.
  2. The website initiating the transaction.
  3. The gas fee.
  4. The wallet address.
  5. The transaction type.

Submit the transaction after confirming these details, then wait for blockchain validation.

Contract deployment consumes gas. A successfully deployed contract receives its own blockchain address.

How Do You Upload NFT Media and Metadata?

After the smart contract is deployed, open the Media and Metadata section to create an NFT.

Step 1: Upload the Work

Choose the image, animation, music, or other media file to make into an NFT.

Before uploading, confirm that:

  1. The platform supports the file format.
  2. The file is not corrupted.
  3. You created or are authorized to use the work.
  4. The file does not expose personal information.
  5. It is the final version.
  6. Its resolution and file size meet the requirements.

Step 2: Set the NFT Name

The NFT name identifies the individual work.

Avoid spelling errors and do not impersonate another project or creator.

Step 3: Set the Supply

The supply is the number of copies of the same NFT to mint.

A supply of 1 creates one copy. A higher supply allows multiple copies of the same Token ID to exist.

Choose supply according to the work's purpose; do not manufacture false scarcity merely by calling something “limited.”

Step 4: Write the Description

The description can cover:

  1. The work's theme.
  2. Its creative background.
  3. Software or methods used.
  4. The collection's story.
  5. The NFT's actual functionality.
  6. Holder benefits.
  7. File storage method.
  8. Copyright and usage restrictions.

Do not promise returns or future prices that cannot be guaranteed.

An external link can point to the creator's official website, a project introduction, or a related page.

Use a long-lived domain you actually control. Do not add unrelated promotional or download links.

Step 6: Add Attributes

Attributes, or Traits, can describe the NFT's background, color, clothing, character, skills, or other features.

They affect how an NFT is searched, filtered, and displayed for rarity on a marketplace.

Use consistent naming. For example, multiple spellings for one color may cause a marketplace to treat them as different attributes.

How Do You Complete the Mint?

After uploading the media and checking the metadata, select Mint.

The wallet will display a minting transaction. Confirm again:

  1. The connected network.
  2. The NFT smart contract address.
  3. The mint quantity.
  4. The receiving wallet address.
  5. The gas fee.
  6. The transaction source.

Then submit the transaction.

After blockchain validation, the NFT is created and recorded under the specified wallet address.

Under OpenSea's official flow, directly created NFTs use ERC-1155 and can have a configurable supply. A supply of 1 produces only one copy.

After a successful mint, record:

  1. NFT contract address.
  2. Token ID.
  3. Transaction hash.
  4. Block height.
  5. Minting wallet address.
  6. NFT page link.

You can use this information later to verify the NFT's authenticity.

Where Are NFT Files Actually Stored?

The NFT itself is recorded on the blockchain, but its image, video, or music may not be stored entirely on-chain.

Common storage methods include:

  1. Fully on-chain storage.
  2. Distributed storage such as IPFS.
  3. Other decentralized storage networks.
  4. Project servers.
  5. Cloud storage services.

Fully on-chain storage reduces external dependencies, but it is expensive and unsuitable for large files.

Conventional servers are convenient, but an NFT's image may disappear if the server shuts down or the file path changes.

IPFS locates files using content-based identifiers. The IPFS best practices for NFT data advise creators to consider file links, metadata format, and long-term preservation together.

Uploading a file to IPFS does not guarantee permanent storage. Creators still need reliable nodes or a pinning service to keep the file available.

Can NFT Metadata Be Changed?

Whether metadata can be changed depends on the smart contract and creation tool.

Some NFTs let creators update the name, description, image, or attributes. Others freeze metadata at a certain point and prevent later changes.

OpenSea currently states that some NFTs created with Studio can have their media, name, and description updated, although saving on-chain changes may require a signature and gas.

When creating an NFT, clarify:

  1. Which information can be changed.
  2. Who has permission to make changes.
  3. Whether metadata will be frozen.
  4. Whether freezing can be reversed.
  5. Whether the image storage address can change.
  6. Whether the project can replace all content.

Editability helps fix errors and update dynamic assets, but it also requires holders to trust that the permission holder will not maliciously replace the content.

How Much Does It Cost to Mint an NFT?

NFT minting has no fixed price. Its main cost components are listed below.

13.1 Smart Contract Deployment Fee

Creating an NFT collection for the first time may require contract deployment, which normally consumes more gas than a standard transfer.

13.2 Minting Fee

Each transaction that creates an NFT on-chain may incur a minting fee.

13.3 Metadata Update Fee

If changing NFT information requires an on-chain transaction, it may consume additional gas.

13.4 Platform Fee

Some platforms may charge for specific creation, sale, or Drop processes. Rates can change, so rely on the confirmation page and official fee information.

13.5 File Storage Fee

An IPFS pinning service, cloud storage, or another long-term preservation method may have storage costs.

According to OpenSea's gas fee guide, creating an NFT collection in OpenSea Studio requires contract deployment, and both deployment and minting consume gas.

Gas is paid through the wallet to blockchain validators. OpenSea will not ask you to transfer a supposed gas fee to a private wallet address.

How Can You Reduce NFT Minting Costs?

Consider the following measures:

  1. Choose a time when the network is less congested.
  2. Compare gas costs across blockchains.
  3. Check all information before creation to reduce later edits.
  4. Mint one NFT first to test the process.
  5. Avoid repeatedly deploying test contracts.
  6. Plan the collection and supply carefully.
  7. Set an acceptable gas limit in the wallet.
  8. Practice the technical process on a testnet.
  9. Do not rush to submit when fees are unusually high.
  10. Save contract and metadata records to avoid duplicate work.

Low gas does not necessarily make a network or platform right for a project. Also consider user numbers, wallet support, market liquidity, and security.

Why Is an NFT Missing from the Wallet After a Successful Mint?

Possible reasons include:

  1. The blockchain is still confirming the transaction.
  2. The wallet has not refreshed.
  3. The wallet is on the wrong network.
  4. The wallet has not automatically indexed the collection.
  5. The metadata has not loaded.
  6. The image storage service is temporarily unavailable.
  7. The wallet classified the NFT as a hidden asset.
  8. The minting transaction actually failed.

Check the following:

  1. Look up the minting transaction hash.
  2. Confirm that the transaction succeeded.
  3. View the NFT contract address.
  4. Find the Token ID.
  5. Confirm the current holder address.
  6. Switch to the correct blockchain network.
  7. Import the NFT into the wallet manually.
  8. Wait for the marketplace to refresh the metadata.

If a blockchain explorer shows that the correct wallet address owns the NFT, the NFT may still exist even when its image is temporarily missing.

What Should You Do If an NFT Mint Fails?

A mint may fail because:

  1. The wallet lacks funds for gas.
  2. The gas setting is too low.
  3. The network is congested.
  4. The smart contract execution failed.
  5. The file format is unsupported.
  6. The website lost its wallet connection.
  7. The wallet is connected to the wrong network.
  8. The mint has not opened yet.
  9. The NFT supply is already fully minted.
  10. Allowlist conditions are not met.

To troubleshoot:

  1. Check the failure reason in a blockchain explorer.
  2. Confirm the wallet balance.
  3. Verify the network and contract address.
  4. Refresh the official page and reconnect the wallet.
  5. Check the platform's status.
  6. Wait for congestion to ease.
  7. Contact the official help center.

Do not trust strangers in direct messages who claim a transfer can “repair a failed mint.” Legitimate gas is paid through wallet transactions, not sent to a private address supplied by support.

How Do You Sell an NFT After Minting It?

After an NFT is created in your wallet, you can list it on a marketplace that supports its network and standard.

The general process is:

  1. Connect the wallet holding the NFT.
  2. Open the NFT details page.
  3. Choose to sell it.
  4. Set a price.
  5. Choose the asset to receive.
  6. Set the listing period.
  7. Check platform fees and creator earnings.
  8. Confirm the NFT approval.
  9. Sign in the wallet.
  10. Wait for a buyer.

A successful mint does not guarantee a sale. Demand depends on the work, creator, utility, community, price, and market liquidity.

For the trading process, see How to Buy and Sell NFTs: OpenSea and Blur Tutorial.

Can NFT Creators Set Royalties?

Some NFT contracts and marketplaces let creators receive a share of secondary sales, also called creator earnings or NFT royalties.

Royalty settings usually record a recipient address and rate, but whether they are enforceable across every marketplace depends on the contract and marketplace rules.

Before setting royalties, confirm:

  1. The royalty recipient address.
  2. The royalty rate.
  3. Which marketplaces support it.
  4. Whether the contract can enforce it.
  5. Whether the address can be changed later.
  6. How collaborators will split the earnings.
  7. Whether the platform imposes a rate cap.

Do not treat NFT royalties as permanent, stable, unconditional income. Changes in marketplace policy or trading methods can affect actual payments.

19.1 Unauthorized Use of Someone Else's Work

Downloading someone else's image and minting it does not grant the minter copyright.

19.2 Use of Brands and Character Images

Using film, game, or television characters, brand logos, or trademarks without permission may infringe relevant rights.

19.3 Unclear Rights in AI-Generated Content

When using AI-generated work, review the tool's terms, disputes surrounding training material, and the scope of commercial authorization.

19.4 Unclear Rights in Collaborative Work

Collaborators should agree in advance on attribution, revenue, copyright, and NFT issuance rights.

19.5 Unclear Rights for NFT Holders

Creators should clearly state whether buyers may display, copy, modify, or commercially use the work.

Minting only creates an on-chain token; it does not automatically resolve real-world copyright ownership.

What Security Risks Does NFT Minting Involve?

20.1 Fake Minting Websites

Scammers may copy an NFT platform or project page to trick users into connecting a wallet.

20.2 Malicious Approvals

A fake website may ask for permission to transfer all of a user's NFTs or tokens.

20.3 Fake Support

No legitimate support representative should ask for a seed phrase, private key, or wallet password.

20.4 False Gas Requests

Gas is paid through a wallet transaction and does not need to be sent to an address supplied by a stranger.

20.5 Smart Contract Vulnerabilities

A vulnerable custom NFT contract can enable unauthorized issuance, lock assets, or cause loss of permission control.

20.6 Metadata Loss

Without long-term preservation of the work and metadata, the NFT image may become inaccessible.

Safety Tips for Your First NFT Mint

  1. Use only work to which you hold the rights.
  2. Access the creation platform through its official domain.
  3. Use a small amount of funds for the first test.
  4. Create one test NFT first.
  5. Carefully check the smart contract name and token symbol.
  6. Confirm the blockchain network.
  7. Verify the supply.
  8. Never disclose your seed phrase or private key.
  9. Read the transaction details in the wallet.
  10. Do not sign approvals unrelated to the mint.
  11. Save the contract address and Token ID.
  12. Back up the media and metadata.
  13. Clearly define copyright and usage rules.
  14. Do not promise investment returns that cannot be guaranteed.
  15. Check wallet approvals after the mint succeeds.

How Can You Explore On-Chain Features with Hotcoin Web3 Wallet?

Visit Hotcoin Web3 Wallet to learn about wallet and Web3 features, or download the Hotcoin App for mobile access.

Before using a wallet to mint, confirm that:

  1. The wallet supports the target blockchain.
  2. The wallet has enough assets for gas.
  3. It is connected to the official NFT platform.
  4. The contract address in the transaction is correct.
  5. The mint quantity is as expected.
  6. The wallet recovery information is securely backed up.
  7. No abnormal approval remains after the operation.

Conclusion

Minting turns a digital work into a blockchain NFT. A user prepares an original work, a Web3 wallet, a target blockchain, and assets for gas, then completes the mint through a smart contract.

For a first NFT, a no-code tool such as OpenSea Studio can handle contract deployment, media uploads, metadata, supply confirmation, and minting.

A successful mint proves only that the NFT was created on the blockchain. It does not guarantee market value or automatically give the minter copyright in the underlying content.

Creators must also consider file storage, contract permissions, holder rights, market demand, and long-term maintenance. Verify the official website, wallet transaction, and smart contract information, and test the process with a small amount first.

Visit the Hotcoin website for more NFT and Web3 educational content.

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