A crypto wallet is a digital storage system for cryptocurrencies like Bitcoin, Ethereum, and Litecoin. It allows the user to store, send, and receive digital currency. Crypto wallets work by securely storing a user’s private key, which is used to access their digital currency. The private key is a long sequence of letters and numbers that is unique to each wallet. The wallet also has a public address, which is used to send and receive funds between users.