Accessibility in React applications is often misunderstood, with many developers questioning whether React itself is accessible. Instead, the focus should be on how developers implement accessibility practices, as common issues arise from misuse of semantic HTML, over-reliance on ARIA, and the structure of Single Page Applications. Strategies for improving accessibility in React include using semantic elements, managing focus, and choosing more accessible libraries.

Headless Tree is a highly customizable and accessible tree component library for React, supporting features such as drag-and-drop, search, renaming, and extensive keybindings. It provides a simple integration with a flat structure to optimize performance and accessibility while allowing users to manage tree state and behavior flexibly. The library is currently in beta and offers a lightweight bundle size with tree-shaking capabilities for optimal performance.