Blockchain wallet development involves building secure digital wallets that allow users to store, manage, and transact cryptocurrencies or tokens. These wallets can be custodial or non-custodial, and come in forms such as web, mobile, desktop, or hardware. Key features include private key management, multi-currency support, QR scanning, and integration with DeFi or NFT platforms. Developers prioritize security, user experience, and blockchain compatibility. Businesses offer wallets as standalone products or integrate them into larger blockchain ecosystems, empowering users with secure digital asset control.