Recoil

A high-performance state management library for React that uses a directed graph to sync shared state with minimal re-renders.

Recoil optimizes React application performance by decoupling shared state into discrete units called Atoms and derived data called Selectors. Built by Meta (formerly Facebook), it solves the 'prop drilling' and 'context hell' problems by allowing components to subscribe only to the specific data fragments they need. This fine-grained approach eliminates unnecessary updates in complex UIs: a single Atom update triggers only the dependent components rather than re-rendering an entire tree. It supports concurrent mode and provides built-in persistence hooks to manage asynchronous data flows with ease.

https://recoiljs.org