A crypto wallet is a digital tool that allows users to securely store, manage, and interact with cryptocurrencies. It holds private keys, essential for accessing and controlling cryptocurrency assets stored on a blockchain. Crypto wallets come in two main types: hot wallets (online, connected to the internet) and cold wallets (offline, offering greater security). They enable users to send, receive, and monitor balances of cryptocurrencies like Bitcoin and Ethereum.

Wallets can be software-based (mobile, desktop, or web) or hardware devices designed for enhanced protection. A crypto wallet is fundamental for participating in decentralized finance (DeFi), trading, or holding digital assets.