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.