ERC721 Token (NFT)

The ERC721 token is also known as an NFT (Non-Fungible Token). Unlike ERC20 tokens, where every token holds the same value, each ERC721 token has its own unique value.

In other words, no NFT can be swapped one-for-one with another.

ERC20 is typically used for currency-like or point-like assets, while ERC721 is used when each token must be unique—for example, in-game items or digital collectibles.