The development of decentralized applications (dApps) is primarily facilitated by blockchain technology. Blockchain serves as a distributed digital ledger that ensures transparency and security without the need for central authority. This enables dApps to function autonomously, executing smart contracts and transactions across a network of nodes. The decentralized nature of blockchain promotes trust, reduces risks, and increases user control over data. As such, it is a cornerstone for innovation in various sectors, including finance, supply chain, and digital identity.