react-resizable-panels

react-resizable-panels is a devtool library for React that provides lightweight, accessible, and performant resizable panel layouts, allowing developers to build split-view interfaces (like code editors or dashboards) where users can drag dividers to resize sections. It’s designed for React developers who need a zero-dependency, flexible solution with support for horizontal, vertical, and nested panels, plus keyboard navigation. Its interesting because it handles complex layout edge cases (like min/max sizes and persistence) with a tiny bundle, making it ideal for high-performance, customizable UIs without heavy abstraction.