@web3-react/core is a popular library for building decentralized applications (dApps) in the Ethereum ecosystem. It provides a set of hooks and components that simplify the process of connecting to various Ethereum wallets, managing user sessions, and interacting with smart contracts. The library is designed to be flexible and modular, allowing developers to easily integrate wallet connections and manage state in their React applications. With @web3-react/core, developers can focus on building their dApps without worrying about the underlying complexities of wallet interactions.

One notable alternative to @web3-react/core is ethers. Ethers.js is a complete and compact library for interacting with the Ethereum blockchain and its ecosystem. It provides a simple and intuitive API for developers to connect to Ethereum nodes, manage wallets, and interact with smart contracts. While ethers.js is primarily focused on the blockchain interaction aspect, it can be used alongside @web3-react/core for a more comprehensive solution when building dApps. Developers who prefer a more lightweight and focused approach to blockchain interactions may find ethers.js to be a suitable alternative.

To see how @web3-react/core compares with ethers, check out the comparison: Comparing @web3-react/core vs ethers.