Web 3.0 represents the next generation of the internet, characterized by decentralization, blockchain technology, and enhanced user privacy. Unlike its predecessors, Web 3.0 empowers users by giving them control over their data, reducing reliance on large corporations. Through technologies like cryptocurrencies and smart contracts, it opens new opportunities for peer-to-peer interactions and business models. This article explains the foundational concepts of Web 3.0, its potential applications across industries, and the challenges it faces before mass adoption.