These contracts are written primarily in programming languages such as Solidity (for Ethereum) and move value or data once terms are fulfilled. Because they operate on public ledgers, their execution is both visible and irreversible, ensuring accountability among participants.

Smart contracts form the backbone of decentralized applications (dApps) and decentralized finance (DeFi). They enable lending, trading, gaming, and even governance through code-based rules rather than institutional oversight.

As adoption grows, smart contracts continue to expand the possibilities of trustless interaction. Their accuracy, transparency, and efficiency make them central to the vision of a decentralized internet.