React Stonecutter is an animated grid layout component for React, inspired by Masonry. You can choose between CSS Transitions or React-Motion for animation.
Dazzle is a library for building dashboards with React JS. Dazzle does not depend on any front-end libraries but it makes it easier to integrate with them.
FixedDataTable is a React component for building and presenting data in a flexible, powerful way. It supports standard table features, like headers, columns, rows, header groupings, and both fixed-position and scrolling columns.
Elemental UI is a flexible and beautiful UI Toolkit for React.js Websites and Apps.
There are modular set of UI scaffolding components and controls for React that are built from the outset to natively implement React patterns.
Draft.js is a framework for building rich text editors in React, powered by an immutable model and abstracting over cross-browser differences.