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Applications built on blockchain without central servers
Web3 Applications
Decentralized Applications (DApps) run on blockchain networks instead of centralized servers. They use smart contracts for backend logic and connect to blockchain through user wallets. This architecture enables censorship-resistant, transparent applications where users own their data and assets.
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Decentralized web infrastructure
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MetaMask, WalletConnect
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Uniswap, Aave, Compound
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Decentralized file storage
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Ethereum Name Service
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Decentralized organizations
Traditional web apps (Web2) store data on company servers and run under company control. Web3 apps (DApps) store data on blockchains and run via smart contracts—no single entity controls them. Users authenticate with crypto wallets instead of passwords. This shifts power from platforms to users, but introduces new challenges around scalability and user experience.
Learn to create decentralized applications with Web3 technologies.