A cryptocurrency wallet is a digital tool that allows users to store, send, and receive cryptocurrencies like Bitcoin and Ethereum. Unlike a physical wallet, it doesn't hold actual coins but instead manages the private and public keys needed to access and transact with your digital assets. There are different types of wallets, including software wallets, which can be apps on your phone or computer, and hardware wallets, which are physical devices that store your keys offline. Each type offers varying levels of security and convenience, catering to different user needs and preferences.