Blockchain wallet development involves creating secure digital wallets for storing, sending, and receiving cryptocurrencies and tokens. These wallets can be custodial or non-custodial and support multiple assets across various blockchain networks. Wallet features include multi-signature support, biometric authentication, private key management, and DeFi or NFT integrations. Developers focus on UI/UX design, encryption, and cross-platform compatibility for mobile and web apps. With growing blockchain adoption, wallet development plays a crucial role in enabling safe, user-friendly access to decentralized ecosystems and digital assets.