OpenSea
score
Fees: ~2.5% trading fee (variable); optional royalties
OpenSea suits mainstream collectors and creators who value the widest chain coverage and the deepest catalog of collections in one place. The main caveat is that per-collection liquidity on top assets often trails specialized rivals, and royalty handling is not always enforced. This is not financial advice.
What OpenSea is
OpenSea is one of the oldest and most recognized NFT marketplaces, launched in 2017, where people buy, sell and mint non-fungible tokens across many blockchains. It runs non-custodially, meaning trades settle from your own wallet through smart contracts rather than an exchange holding your assets on your behalf.
Where it leads on the scorecard
Our overall 8/10 leans on breadth. Chain coverage is the standout at 9/10, spanning Ethereum, Polygon, Solana, Arbitrum, Base and more, so almost any collection you are chasing tends to live here. Creator tools score 8.5/10 for mature minting, drop and collection-management features, while liquidity and security both land at 8/10 — deep overall, even if top-collection depth can trail specialists.
Costs and royalties
On cost, OpenSea earns 7/10 for fees and royalties. It applies a variable trading fee in the region of 2.5%, with optional creator royalties layered on top. That is competitive rather than the cheapest option, and the exact rate has shifted over time with market conditions.
The main caveat
The chief watch-out is competitive erosion and royalty handling. Blur and Magic Eden have pulled meaningful blue-chip volume away, so per-collection liquidity on the hottest assets is not always the deepest here. Royalty enforcement has also wavered, frustrating some creators, and the platform carries a history of phishing scams plus a past insider-trading case involving an employee — reasons to check links and listings carefully.
Bottom line
OpenSea is best for mainstream collectors and creators who want one recognizable, multi-chain home with the widest catalog and solid tooling. Hardcore flippers chasing the tightest spreads on a single collection may prefer a specialist venue. This is not financial advice.
Overall 8.0 / 10 — the weighted average of the criteria above. How we score →
- + Largest breadth of collections and one of the most recognized NFT brands
- + Broad multi-chain support (Ethereum, Polygon, Solana, Arbitrum, Base and more)
- + Mature creator tooling for minting, drops and collection management
- + Non-custodial via the audited Seaport protocol
- − Lost blue-chip trading volume to Blur and Magic Eden
- − Royalty enforcement has wavered, frustrating some creators
- − History of phishing scams and a past insider-trading case involving an employee
Is OpenSea safe to use?
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It is non-custodial and settles trades through the audited Seaport protocol from your own wallet, and we score its security 8/10. That said, it has a history of phishing scams and a past employee insider-trading case, so verify links and listings and never sign unexpected transactions.
What fees does OpenSea charge?
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A variable trading fee in the region of 2.5%, plus optional creator royalties on top. The exact rate has changed over time with market conditions.
Which blockchains can I use on OpenSea?
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It is one of the broadest venues, covering Ethereum, Polygon, Solana, Arbitrum, Base and more — the reason it earns our top 9/10 for chain coverage.
Is OpenSea still the largest NFT marketplace?
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It has the widest breadth of collections and one of the most recognized brands, but it has ceded blue-chip trading volume to Blur and Magic Eden.
Is OpenSea good for creators?
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Yes — mature minting, drop and collection tools earn 8.5/10 — though royalty enforcement has wavered, which frustrates some artists.