React gained popularity really fast and led to the creation of several addons and tools by the community. Also, being a library with a simple concise goal (building user interfaces), React can be easily integrated with many existing tools or frameworks. Our traditional stack includes Webpack, Express, Redux (with its many addons), react-router and axios.
Facebook released the React library along with the Flux architecture. While Flux is not a library itself, many libraries implementing this pattern have arised with Redux being our choice.