Web3 refers to the third generation of the internet, which is often referred to as the "decentralized web." Web3 is built on top of blockchain technology, which enables decentralized and trustless systems.

The first generation of the web, Web1, was a static and read-only web, where users could only view content but couldn't interact with it. The second generation, Web2, enabled more dynamic and interactive websites, where users could create and share content, and social media platforms were born.

Web3, on the other hand, aims to create a more decentralized and democratized internet, where users have greater control over their data and can interact with applications and services in a trustless manner. Web3 applications are powered by decentralized protocols and run on decentralized networks such as Ethereum, Polkadot, and others.

Web3 also enables the creation of decentralized finance (DeFi) applications, which provide financial services without intermediaries such as banks, and decentralized autonomous organizations (DAOs), which are organizations that are run by code and operate on a decentralized network.