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OpenSea review and guide

The largest NFT marketplace by volume — but it's not perfect.

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OpenSea pros and cons

Pros
  • Mixed marketplace. OpenSea is known for its large variety of NFTs and multiple categories.
  • Never been hacked. To date, OpenSea has never experienced a sitewide hack.
  • $0 account minimum. Users aren't required to have a balance in their account or crypto wallet to use the platform.
  • Accepts multiple cryptocurrencies. OpenSea supports multiple cryptocurrency payments for digital assets.
  • No buyer fees. Sellers must pay a 2.5% fee, but buyers only need to pay gas fees for interacting with the blockchain.
Cons
  • Low royalties. OpenSea has a maximum of 10% royalty earned from secondary sales.
  • No fiat support. OpenSea doesn't have any support for noncrypto payments.

OpenSea is a decentralized marketplace that enables buying, selling and trading NFTs. Once proclaimed as the "eBay for CryptoKitties," OpenSea has expanded beyond collectibles to become a marketplace for most types of digital assets such as game items, music, domain names and more.

Our take on OpenSea

OpenSea is known as a premier NFT marketplace in the crypto industry. Founded in 2017 by programmers Alex Atallah and Devin Finzer, it's one of the first NFT marketplaces in existence, and is currently the largest in the world. It has over one million registered users and millions of NFTs for sale.

OpenSea has a clean and easy-to-use interface, making it simple for NFT beginners to enter the space, mint NFTs and trade.

The platform allows you to buy digital assets among millions of NFTs in multiple categories. However, the marketplace has a major problem with fraudulent NFTs. And in a decentralized market like crypto and NFTs, victims of fraudulent products are usually left out to dry.

OpenSea admitted that around 80% of their NFTs are fake, so collectors beware.

OpenseaImage source: OpenSea

You can also list NFTs that you've created or bought from somewhere else, including blockchain games. Creators can earn up to 10% in royalties for each secondary sale.

While OpenSea has never experienced a platform hack, in May 2022, OpenSea's Discord was flooded with malicious links. A scammer was trying to promote a fake NFT with a link that redirects users to a phishing site, reported by Fortune.

Overall, OpenSea is a decent marketplace for creators and newbies. It's reputable, large and has a free mobile app for Android and Apple devices.

About OpenSea

OpenSea is built on the Ethereum blockchain. Within the marketplace, users own all assets rather than the platform itself. You can buy NFTs using ether (ETH) and many other supported cryptocurrencies.

As a decentralized marketplace, OpenSea's smart contracts allow users to interact with the platform without surrendering custody of their NFTs. Your digital assets don't leave your wallet until you make a transaction. You don't even need to create an account as long as you have a supported crypto wallet, such as MetaMask.

If you're after a specific NFT, you can use the search bar or filter your search by category, collection, blockchain network and status. You can sort your search results by listing date, price or viewers.

OpenseaImage source: OpenSea

OpenSea blockchain and currency

Originally built on Ethereum, OpenSea also added support to the Klaytn chain in light of its goal to become a cross-chain marketplace. Furthermore, it has added Ethereum layer-2 protocol Polygon (MATIC) to enable fast and low-cost trading.

Users can now trade Solana NFTs, a function in beta at the time of writing.

OpenSea primarily accepts ETH or DAI for purchases. However, it also accepts over 150 other tokens such as UNI, MANA, REVV and WHALE.

Top pick for Opensea: Gemini Cryptocurrency Exchange

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140
Cryptocurrencies
7
Fiat Currencies
  • Wide range of exchangeable currencies
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  • Insurance on currency balances up to $250k
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  • High fees on mobile app
  • Missing some notable top 20 currencies
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Gemini is a cryptocurrency exchange with a simple UI that's user-friendly and accommodating to newcomers and experienced traders.

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Gemini has a wide selection of cryptos available for exchange on the platform. However, some notable entries from the top 20 by market cap are missing, such as Cardano and Solana.

Deposit Methods Bank transfer (ACH)
Cryptocurrency
Debit card
PayPal
Apple Pay
Google Pay
SWIFT
Deposit Fees Cryptocurrency: None
Bank transfer (ACH): None, bank fees may apply
Wire Transfer: Determined by your bank
Debit Card: 3.49% + Trading Fees
Paypal: 2.50% of total deposit amount + Trading Fees
Withdrawal Fees Cryptocurrency: None (for 10 withdrawals and below per month)
Others: None (for 10 withdrawals and below per month)
Trading Fees ActiveTrader:
Taker fee - 0.03-0.4%
Maker fee - 0-0.2%

What types of NFTs are available on OpenSea marketplace?

OpenSea has multiple categories of NFTs to browse through. The primary categories include:

  • Art
  • Music
  • Domain Names
  • Virtual Worlds
  • Trading Cards
  • Collectibles
  • Sports
  • Utility

OpenSea supports ERC-721 and ERC-1155 tokens. Check out the Details page while browsing listings to find out what kind of token it is.

OpenseaImage source: OpenSea

Token standards on OpenSea include:

  • ERC-721 and ERC-1155 supported on Ethereum and Polygon
  • KIP17 and KIP37 on the Klaytn blockchain
  • Solana NFTs use the SPL token standard, Master Editions and Editions

ERC-1155 tokens are semifungible tokens, and known as KIP37 on Klaytn. These tokens are primarily used in blockchain games for potions, characters, etc. On Solana, semifungible tokens are called Editions.

How to buy NFTs on OpenSea

Follow these steps to buy an NFT on OpenSea:

  1. Get a crypto wallet. To purchase and store an NFT, you need a Web3 wallet, also known as a crypto wallet. Software wallets are almost always free to use and download to your browser.
  2. Buy cryptocurrency. OpenSea only supports crypto payments. Buy the cryptocurrency you want to use and have it in your chosen wallet. Most purchases on OpenSea are done with ETH.
  3. Log in to OpenSea. Select Sign In to connect your crypto wallet to OpenSea.
  4. Browse the marketplace. Sort NFT listings by genre, views, creator and more.
  5. Buy the NFT. If you find a worthy pick, select it, then hit Buy Now. The platform shows you the total amount required for payment, including the fees. Then hit Checkout. If you're in an auction, you're bidding.
  6. Approve transaction. Your crypto wallet brings up a window, outlining gas fees for completing the transaction. If you're happy with the purchase, confirm the transaction.

Popular creators on OpenSea

A few notable creators and collections available on OpenSea include:

  • Azuki
  • Bored Ape Yacht Club
  • CryptoPunks
  • Doodles
  • Meebits
  • Okay Bears
  • Otherdeed for Otherside
  • Ragnarok Meta
  • VeeFriends

How to sell NFTs on OpenSea

To sell an NFT on OpenSea:

  1. Connect your wallet and sign in. Like buying an NFT, you must sign in to OpenSea and connect your supported crypto wallet.
  2. Profile page. Head to your profile where you can view your owned assets.
  3. Select the NFT to sell. Once you've found the NFT you want to sell, select it. On the top-right corner, there's a blue button labeled Sell.
  4. Fill out details. Fill in your desired price, sales method and other details. Once done, hit Post Your Listing. Note that OpenSea charges a one-time fee for first-time sellers.

View all the assets you have listed for sale by selecting on your profile page and then hitting the Activity tab.

OpenSea has multiple sale methods:

  • English Auction. A seller puts up an NFT for sale, sets a minimum price and waits for buyers to bid. OpenSea automatically accepts the transaction if the auction finishes above 1 ETH. If the auction finishes below 1 ETH, it's the seller's choice if they want to accept the highest bid. The seller is under no obligation to complete the transaction.
  • Dutch Auction. Similar to fixed-price listings but the price falls over time. A seller initially puts an asset up for sale at a high price which progressively lowers over time. Once the price drops to a valuation equal to a buyer's bid, the buyer can receive the item right away.
  • Fixed Price. A seller lists an NFT and the price never changes.
  • Bundles. The Bundle feature allows you to sell multiple NFTs under one transaction. You can list up to 30 items in a bundle.

OpenSea fees

Transactions on OpenSea are on-chain, so trading NFTs means paying gas fees on the Ethereum blockchain.

Buyer fee None
Seller fee 2.5%
First-time fees One-time gas fee for initializing account, shown as Register Proxy transaction.
Royalty percentage Up to 10%

OpenSea NFT drops

OpenSea has a monthly newsletter called The Tide to help users stay up to date with the latest NFT drops, new site features, updates from the team, trends and news on upcoming decentralized applications.

To sign up for OpenSea's newsletter to stay current on NFT drops, go to opensea.io/blog/newsletter and enter in your email address to subscribe.

NFT drops can be sporadic, and how often they happen largely depend on NFT creators themselves. Following an NFT marketplace's social media accounts and subscribing to newsletters can keep you up with the latest NFT news. OpenSea also has a Twitter (1.7 million followers) and a Discord server (215k members).

About the OpenSea mobile app

OpenSea has a mobile app available for Android and Apple devices. It's free to download, and allows for NFT purchases on OpenSea, viewing your profile, searching for new NFTs, viewing collections and stats and more.

The App Store has 4.7 stars out of over 27K reviews, and the Google Play store has a four-star rating with over 20K reviews.

These ratings are in line with other crypto exchanges and marketplaces — Coinbase's mobile app has an average star-rating of 4.5. The fact that OpenSea has a mobile NFT trading app is a big plus, considering that some NFT marketplaces — like Foundation — lack one.

OpenseaImage source: App Store, OpenSea mobile app screenshots

Is OpenSea legit?

Yes, OpenSea is a legitimate NFT marketplace. However, not all of the NFT listings on OpenSea are legit.

OpenSea estimated that around 80% of NFTs for sale are fraudulent. The platform is working on resolving this major issue, but at the time of writing, you'll need to sort through listings, read through ownership history and verify authenticity.

OpenSea does have an authenticity signal (the blue check mark) on verified accounts, but we recommend using your best judgment.

OpenSea doesn't employ staking or any feature that requires depositing assets to smart contracts, which means there is no way hackers can steal user funds through bugs or other exploits. All NFT assets remain in user wallets unless they're bought.

Compare marketplaces to buy NFTs

1 - 4 of 4
Name Product Categories Services Blockchains Payment methods
Gala Entertainment
Gala Entertainment
Gaming
Buy, Sell
Ethereum, Binance Smart Chain, GALA
Cryptocurrency
Blockchain gaming platforms where you can earn Gala and NFTs through playing.
Upland
Sports, Gaming, Music, Metaverse
Buy, Sell, Mint
EOS
Credit card, Cryptocurrency, PayPal
Upland is a blockchain-based game where you can buy, sell and mint NFT properties mapped to the real world. Receive a 4500 UPX bonus for signing up
Splinterlands
Collectibles, Gaming, Trading cards
Buy, Sell, Stake
Hive
Cryptocurrency, PayPal
Splinterlands is a digital, play-to-earn, collectible card game built on hive blockchain technology.
Binance NFT Marketplace
Sports, Collectibles, Art, Gaming, Music, Trading cards, Domain names, Metaverse (Virtual Worlds), Memes, DeFi, Mixed
Buy, Sell, Mint
Ethereum
Credit card, Debit card, Cryptocurrency, Bank transfer
A peer-to-peer marketplace supported by one of the worlds largest cryptocurrency exchange, Binance. Not currently available to U.S. residents.
Disclaimer: Star ratings are only displayed for products with 10 or more reviews.
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Bottom line

OpenSea is known as the first and largest NFT marketplace, so it's often the go-to place for trading and creating NFTs. However, new creators may risk being smothered by the millions of other listings and struggle to get exposure.

OpenSea has a low royalty percentage, but it's in line with many other NFT marketplaces at 10%. However, there are marketplaces that offer more freedom in choosing a royalty percentage, such as Rarible, which gives much more freedom in royalties if they become an approved creator.

However, OpenSea is a great place to dip your toes in the pool of NFTs and crypto. There are no account minimums, it accepts multiple cryptocurrencies, supports multiple file formats and ERC-721 and ERC-1155 tokens.

Additionally, many blockchain games rely on OpenSea to run their marketplaces. It's a trusted, reputable platform, but it's still crypto so keep your wits about you while browsing listings.

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