Web3 is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of fraud or third party interference. Web3 is powered by a decentralized network of nodes. Web3 allows you to interact with decentralized applications (DApps) and smart contracts.
Some of the emerging trends in Web3 include the use of blockchain technology for decentralized applications, the use of smart contracts, and the use of cryptocurrencies.