WalletConnect is an open-source protocol that connects decentralized applications (dApps) to crypto wallets using QR code scanning or deep linking. It allows users to securely interact with dApps without exposing their private keys. WalletConnect supports multiple chains like Ethereum, BNB Chain, and Polygon, making it a versatile choice in the Web3 ecosystem. Once connected, users can sign transactions or manage digital assets directly from their mobile wallet. Unlike browser extensions, WalletConnect operates via an encrypted connection between the wallet and the app. Its growing adoption among developers and users highlights its role in creating safer and more user-friendly blockchain experiences.