Marketplaces Compared: OpenSea, Blur, Magic Eden

Pick any ten NFT buyers in 2026 and ask where they trade. You will hear three names — OpenSea, Blur, and Magic Eden — and a brief, slightly exasperated explanation of why they had to use all three. The marketplaces have converged on the basics: fees are at or near zero, creator royalties are optional almost everywhere, and multi-chain support is table stakes on the generalist venues. But they have diverged sharply on everything else — which chains they specialize in, how their trading mechanics feel, and which kind of user they are actually built for.

This guide walks through the three side by side so you can decide which one (or which two, or which three) belongs in your rotation. It assumes you already know what an NFT actually is and where your NFT actually lives. If you do not, start there.

The three players in one paragraph

OpenSea is the oldest. Launched in 2017 as an Ethereum-only marketplace, it spent years as the default storefront for the entire NFT space. In 2025 it relaunched as OS2, a cross-chain platform that trades both tokens and NFTs across 22 blockchains. Through the first two weeks of October 2025, following the OS2 release, OpenSea reportedly processed around $1.6 billion in crypto trades and $230 million in NFT transactions.

Blur launched in October 2022 with a single pitch: a marketplace built for professional NFT traders on Ethereum. Zero marketplace fees, dense keyboard-friendly interfaces, bidding pools, a native BLUR token, and peer-to-peer NFT lending. It advertises around $7.4 billion in lifetime gross merchandise value.

Magic Eden was founded in September 2021 on Solana, where it quickly became the dominant NFT venue. It expanded outward through 2023 and 2024 — most notably into Bitcoin Ordinals and Runes, plus Ethereum, Polygon, and Base — but in February 2026 announced it was winding those products down to refocus on Solana. As of March 2026 its Bitcoin Ordinals/Runes and EVM marketplaces have been shut down; Solana is the live product.

All three now sell JPEGs for low or zero marketplace fees. They do not feel the same to use.

Chain coverage

The chain your NFT lives on narrows your marketplace choice before anything else does. An NFT minted on Solana will not list on Blur. The token lives on the chain; the marketplace is just a storefront that indexes it.

OpenSea (OS2) is the widest net. Its live marketplace supports Ethereum, Solana, Base, Polygon, Arbitrum, Optimism, Avalanche, Abstract, Ronin, Sei, Flow, Blast, Zora, and more — 22 chains at OS2 launch, with additional chains added since. That breadth is the main reason casual buyers default to it.

Blur is Ethereum-focused, with some expansion into Blast. It is the opposite strategy: optimize one chain ruthlessly instead of spreading across many. The result is the deepest liquidity on Ethereum bluechips and essentially no coverage anywhere else.

Magic Eden is Solana-first, and after the February 2026 strategic pivot it is effectively Solana-only. It supports the full modern Solana NFT stack — Metaplex Core, Token 22, compressed NFTs (cNFTs) — and historically led Bitcoin Ordinals, Runes, and SPL-20 inscription trading before shutting those marketplaces down on March 9, 2026. On EVM chains (Ethereum, Polygon, Base) it wound support down at the same time.

If you are buying Solana art, Magic Eden. If you are trading Ethereum bluechips as a pro, Blur. If you want one app for everything — including the EVM chains and Bitcoin Ordinals Magic Eden exited — OpenSea.

Fees: marketplace, gas, and royalties

Every NFT trade has up to three fee components stacked on top of each other.

1. Marketplace fee — the cut the storefront takes.
2. Network gas — what you pay validators or miners to include your transaction. Paid to the chain, not the marketplace. See how a blockchain transaction works for the mechanics.
3. Creator royalty — an optional percentage routed back to the original artist on each resale.

OpenSea's standard marketplace fee was historically 2.5%. OS2 advertises reduced fees and a rewards program that can offset them further. Blur has charged 0% since launch — it is the feature the whole platform was built around. Magic Eden has run zero-fee promotions on some chains and charged chain-specific rates on others; its historical Solana rate was 2%.

Gas is separate on every one of them. A cheap-sounding 0% marketplace fee does not mean a free trade — the Ethereum network itself still charges you to move the token. On Solana, gas is tiny fractions of a cent. On Ethereum during congestion, gas can dwarf the marketplace fee. Transaction fees, explained covers this in more depth.

The royalty debate

Creator royalties are the most contested fee in NFTs, and understanding the timeline matters because it explains why every major marketplace now treats them roughly the same way.

The on-chain standard is ERC-2981. A contract can publish "this collection expects a 5% royalty paid to this address on resale," and marketplaces can choose whether to honor it. The standard is a signal, not an enforcement mechanism.

In November 2022, OpenSea introduced the Operator Filter Registry — a smart-contract-level block list that prevented NFTs from being traded on marketplaces that skipped royalty payments. It was the industry's attempt to force enforcement.

In late 2022, Blur launched with a minimum 0.5% royalty floor on immutable collections, largely optional royalties elsewhere, and zero marketplace fees. Traders flooded in. Creators had no way to stop them without pulling their collections off the market entirely.

In August 2023, OpenSea phased out the Operator Filter — making creator fees optional for new collections starting August 31, 2023, with enforcement for existing non-Ethereum collections ending February 29, 2024. Creator royalties on the platform became effectively optional. The war, effectively, was over.

The state in 2026: on all three major marketplaces, royalties are a tip jar. Some buyers pay them, most do not. Creators who care about enforcement have shifted to on-chain transfer restrictions baked into the NFT contract itself — technical enforcement rather than marketplace goodwill. The result is good for traders and genuinely difficult for small creators. Neither of those statements cancels the other.

Trading mechanics

The three marketplaces settle trades in three different ways, which affects the feel and the safety profile.

OpenSea switched from its original Wyvern protocol to Seaport in 2022. Seaport uses off-chain EIP-712 signed orders that settle on-chain when matched. In plain terms: you sign a listing in your wallet, the signature sits on OpenSea's servers for free, and the buyer pays gas when they execute. This is why listing is gasless but buying is not. Seaport also supports bundles, collection offers, trait offers (bid on any NFT in a collection with blue background), and tips.

Blur runs a similar off-chain order model on Ethereum but layers on tools built for volume. Bidding pools let many users stack bids at the same price on a collection — a sell-at-market tap instantly hits the highest pool. Its sweep function buys the N cheapest listings in one click. Blend is a peer-to-peer lending protocol where an NFT serves as collateral for a loan. The UI is dense, keyboard-driven, and deliberately intimidating for newcomers.

Magic Eden, on Solana, settles trades as on-chain program instructions rather than off-chain signatures, so listing usually costs a tiny amount of SOL. (Its Bitcoin PSBT flow and EVM order aggregator were retired in March 2026.)

One cross-cutting point: listing on any marketplace requires a wallet approval. A setApprovalForAll call grants the marketplace contract permission to transfer your NFTs, and that permission persists until you revoke it. Wallet approvals let a contract move your tokens on your behalf — once given, they stay given.

EIP-712 signatures are also the most common phishing vector in NFTs. A fake site can show you a signature prompt that looks exactly like a real listing, and the signature it captures can drain an entire wallet of NFTs. Check marketplace phishing and signature traps before you sign anything on a site you found through a Discord link.

When to pick which

A quick decision tree, assuming you already know which chain your NFT lives on and remember that minting writes the token in the first place — the marketplace only handles resale.

• OpenSea — Broadest chain coverage, most forgiving UX, best for casual buyers, cross-chain shopping, and the only generalist venue still covering Bitcoin Ordinals and the non-Ethereum EVM chains (Base, Polygon, Arbitrum) where Blur does not compete and Magic Eden no longer operates.
• Blur — Pro traders on Ethereum. Zero fees, deep bid pools, Blend lending, fastest sweep. The UX is a feature if you are a heavy user and a wall if you are not.
• Magic Eden — The default for Solana NFTs. If your NFT is Solana-native, start here. (For Bitcoin Ordinals and Runes after March 2026, you will need a different venue — Magic Eden exited those markets.)

Pragmatically, many traders check two venues before buying anything — floor listings and bid depth can differ even for the same collection because liquidity splits. The checklist is: identify the chain, check where the collection's volume actually lives, then pick the venue with the tightest spread and lowest total cost (fees plus gas plus royalty if you choose to pay it).

Key takeaways

• OpenSea, Blur, and Magic Eden have converged on zero-or-low marketplace fees and optional creator royalties, but diverge sharply on chain coverage and who they are built for.
• OpenSea's OS2 covers 22+ chains and is the generalist. Blur is an Ethereum pro-trader venue. Magic Eden owns Solana and, as of March 2026, has exited Bitcoin Ordinals and EVM chains to refocus there.
• Creator royalties became optional across the industry after OpenSea retired the Operator Filter starting August 31, 2023. Enforcement has shifted to on-chain contract logic.
• Every trade has up to three fee components — marketplace, gas, royalty — and gas is paid to the network, not the marketplace.
• Listings require a setApprovalForAll approval and EIP-712 signatures are the most common NFT phishing vector — treat unknown signature prompts as hostile.