A Self-Custodial Wallet is a type of crypto wallet where users have full control over their digital assets, including private keys. In this wallet, only the user has access to the private keys required to make transactions, so the security and management of the assets is entirely in the hands of the user.

Self-Custodial Wallet, also known as non-custodial wallet, is designed to give users full control over their crypto assets without intermediaries. These wallets allow users to store, send, and receive crypto with greater security as they do not involve third parties such as exchanges or custodial services. Examples of self-custodial wallets are MetaMask, Trust Wallet, and Ledger.

The main advantages of self-custodial wallets are high privacy and security as users do not need to entrust their assets to an outside party. However, the liability is also greater, as if the user loses access to the private keys, no one can recover the assets. These wallets are often used by users who want to have full control over their funds, including in DeFi (Decentralized Finance) transactions and NFT management.