What is a dApp, A decentralized application (dApp) is software running on a blockchain or P2P network rather than centralized servers. It uses smart contracts for backend logic (e.g., Ethereum, Solana), and a frontend interface for user interaction. dApps are immutable, transparent, and resistant to censorship. They offer decentralized finance (DEXs, lending), NFT marketplaces, gaming, identity, social media, and more. Users run or validate code, not rely on a central authority, enabling trustless operations. dApp architecture includes wallet integration, token use, and optional off-chain data storage (IPFS). They promote transparency, user ownership, and distributed governance.