Decentralized applications, or dApps, are software programs that run on a blockchain network rather than a single server. This means they are not controlled by any single entity, making them more resistant to censorship and downtime. Users interact with dApps through a smart contract, which automatically executes actions based on predefined conditions. These applications can serve various purposes, including finance, gaming, and social networking. By leveraging the transparency and security of blockchain technology, dApps allow users to maintain control over their data and assets, fostering a more open and user-centric digital environment.