Selling your first NFT: a step-by-step tutorial on OpenSea.

Setting Up Your Digital Wallet

1. Download a compatible cryptocurrency wallet such as MetaMask, Trust Wallet, or Coinbase Wallet. These wallets allow you to store and manage your digital assets securely.

2. Install the wallet browser extension or mobile app and follow the setup instructions. Make sure to write down your recovery phrase and keep it in a safe place. Losing this phrase could result in permanent loss of access.

3. Once your wallet is set up, connect it to OpenSea by visiting the platform and clicking on the wallet icon in the top-right corner. Select your wallet provider from the list.

4. Confirm the connection request in your wallet application. After approval, your wallet address will appear in the OpenSea header, indicating successful integration.

5. Ensure your wallet contains enough Ethereum (ETH) to cover gas fees. You can purchase ETH directly through most wallet interfaces using a credit card or bank transfer.

Creating and Uploading Your NFT

1. Navigate to the 'Create' button located at the top-right of the OpenSea homepage. Clicking it will take you to the item creation page.

2. Upload your digital file—this can be an image, video, audio, or 3D model. OpenSea supports common formats like PNG, GIF, MP4, MP3, and GLB. Keep file sizes under 100MB for optimal performance.

3. Fill in essential details such as the item name, description, and external link (optional). These elements help buyers understand the context and value of your work.

4. Choose a collection where your NFT will reside. If you don’t have one, create a new collection by clicking “My Collections” and following the prompts to define its name, logo, and traits.

5. Set properties, levels, and stats if applicable. These features are useful for game items or generative art with distinct attributes that affect rarity.

Configuring Sale Options

1. Decide between fixed-price sales or auctions. Fixed price allows immediate purchase while English auctions let bidders compete over time.

2. Enter the price in ETH. For auction listings, specify starting bid and duration—options range from 1 day to 7 days.

3. Enable “Buy it Now” if offering a direct sale. This gives collectors the option to acquire instantly without bidding.

4. Review OpenSea’s 2.5% service fee plus any applicable marketplace charges. Additional fees may apply based on blockchain congestion and transaction complexity.

5. Confirm all settings and click “Complete listing.” Your wallet will prompt you to sign the transaction. Approve it to finalize the process.

Minting and Finalizing Your Listing

1. During the first-time listing, OpenSea may require initializing your account. This involves signing two transactions: one for contract approval and another for listing confirmation.

2. Gas fees vary depending on network activity. High demand periods lead to increased costs. Monitor Ethereum gas prices via tools like Etherscan or GasNow to choose optimal timing.

3. After signing, wait for blockchain confirmation. The NFT will appear in your profile once processed. This usually takes a few seconds to several minutes.

4. Share your newly listed NFT across social media channels, Discord communities, or artist networks to increase visibility.

5. Monitor views, offers, and sales notifications within your OpenSea dashboard. Respond promptly to buyer inquiries to build trust and reputation.

Frequently Asked Questions

How much does it cost to sell an NFT on OpenSea?There is no upfront cost to list an NFT thanks to OpenSea’s lazy minting feature. However, when your item sells, you’ll pay a 2.5% service fee. Buyers cover gas fees unless you’re using Polygon blockchain, which offers gas-free minting.

Can I edit my NFT after it’s been listed?You can edit certain details like price, title, and description before the NFT is sold. Metadata tied to the token ID, especially with lazy-minted items, cannot be altered post-creation. Always verify information before finalizing.

What happens when someone buys my NFT?Upon purchase, the funds are automatically transferred to your connected wallet in ETH. The ownership record updates on the blockchain, and the buyer receives the digital asset. OpenSea deducts its commission from the sale amount.

Is OpenSea the only platform for selling NFTs?No, alternatives include Rarible, Foundation, and LooksRare. Each has unique features, audience demographics, and fee structures. Some focus on specific niches like music or photography, offering tailored experiences for creators.