A crypto wallet is a tool that allows you to store, send, and receive cryptocurrencies. Wallets come in different forms: hardware (physical devices like Ledger), software (apps like MetaMask), and paper (printed keys). Wallets don’t actually “store” crypto — they store your private keys, which give you access to your coins on the blockchain. Securing your wallet properly is critical because losing your private key means losing access to your assets forever.