OpenSea remains the recognized brand and multi-chain generalist of NFT marketplaces. Widest chain coverage (10+ chains), the most-established creator tools (OpenSea Studio), and continued relevance despite competition from Blur (ETH pro trading) and Magic Eden (Solana + BTC).
What OpenSea actually is
OpenSea is a multi-chain NFT marketplace — the original mainstream NFT venue since 2017. Covers Ethereum, Polygon, Arbitrum, Optimism, Base, Solana, Klaytn, and more. Broad token support (ERC-721, ERC-1155, SPL, and others), diverse pay methods per chain.
Fees and royalties
- Trading fee: 2.5% (reduced from earlier 2.5% + optional 5-10% creator royalty era)
- Royalty policy: optional enforcement (OpenSea Operator Filter allows creators to opt-in blocklists of non-royalty-enforcing marketplaces)
- Gas: user pays chain gas per transaction
Who should use OpenSea
- Casual NFT collectors wanting multi-chain access in one UI
- Creators wanting mainstream distribution
- Users of chains where Blur/Magic Eden are thin
Verdict
OpenSea remains the most-recognized NFT marketplace and the widest multi-chain generalist. Not the cheapest (Blur wins on ETH pro trading) or the most Solana-focused (Magic Eden), but the safe default for casual collectors.