Web3 is the decentralized evolution of the internet, built on blockchain technology. For Web2 developers, transitioning to Web3 involves learning new paradigms like smart contracts, decentralized apps, and token economies. Frameworks like Ethereum and Solana enable building dApps with familiar tools such as TypeScript. The core challenge in Web3 development is embracing decentralization, trustlessness, and user ownership of data. Skilled developers can leverage their existing skills while adopting blockchain programming and deployment techniques.