React Split Pane

react-split-pane is a modern, accessible, and TypeScript-first React component designed for creating resizable split layouts. The current stable version is v3.2.0, which is built entirely with React hooks and provides comprehensive type definitions. This library enables developers to create flexible layouts with multiple resizable panes, supporting both horizontal and vertical splits, as well as nested configurations. Key differentiators include full TypeScript support, robust accessibility features (keyboard navigation, ARIA), touch-friendly interactions for mobile devices, and easy theming via CSS variables. It boasts a small bundle size (< 5KB gzipped) and ensures performant resizing through requestAnimationFrame throttling. Releases are active, with several patches and minor versions pushed out for the v3 series, indicating ongoing development and maintenance.