The largest NFT marketplace for buying, selling, and discovering digital collectibles
Last updated: June 2026
OpenSea is the largest and most recognized NFT marketplace, having processed over $30 billion in trading volume since its launch in 2017. It supports ERC-721 and ERC-1155 NFTs on Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB Chain, Klaytn, and Solana — giving creators and collectors the broadest chain reach of any single marketplace. For creators, OpenSea provides a no-code minting tool (OpenSea Studio) that lets you deploy an NFT collection to mainnet or a testnet without writing Solidity — useful for artists and brands who want to experiment without developer resources. The platform charges a 2.5% transaction fee on primary and secondary sales. OpenSea's Seaport protocol — the open-source smart contract system underlying its marketplace — has been widely adopted by competing marketplaces and aggregators, which has extended OpenSea's technical influence beyond its own platform. OpenSea Pro (formerly Gem) is a separate power-user interface that adds floor sweeping, portfolio management, and aggregated listings from multiple marketplaces. Royalty enforcement has been a point of controversy: OpenSea's optional royalty model has been criticized by creators for allowing buyers to avoid paying royalties on secondary sales, a stance driven by competitive pressure from 0% royalty competitors like Blur.
OpenSea offers a free plan.
OpenSea
Free
| Feature | OpenSea |
|---|---|
| Minting | ✓ |
| Marketplace | ✓ |
| Royalty Enforcement | Optional |
| Multi Chain Support | ✓ |
| Analytics | ✗ |
| Rarity Ranking | ✓ |
| Bulk Listing | ✓ |
| Api Access | ✓ |
| Launchpad Support | ✓ |
| Cross Marketplace Aggregation | Pro only |
Yes, OpenSea has a free plan.
OpenSea is used for the largest nft marketplace for buying, selling, and discovering digital collectibles. It's primarily used by Web3 teams in the NFT Tools category.
See our full alternatives comparison at web3tools.directory/alternatives/opensea.
OpenSea has a rating of 4/5 based on 4231 reviews. Key strength: Largest buyer pool — highest chance of sale for any NFT you list. Main limitation: 2.5% fee is higher than Blur (0%) for high-volume NFT traders.
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