flight is the best way to build animation compositions for React.
Design and compose a component to start with, a component to end with, and Flight will take it from there.
React-Datasheet is a simple and customizable react component to create a excel-like spreadsheet.
Awesome React Components is a huge catalog of React components and libraries. You can also add your react component / library to this catalog.
Radium is a set of tools to manage inline styles on React elements. It gives you powerful styling capabilities without CSS.