react-infinite-scroll-component is a React component library that implements infinite scroll functionality for lists and feeds.
The component solves the problem of loading and displaying large datasets incrementally as users scroll. It uses the IntersectionObserver API to detect when a sentinel element enters the viewport, triggering a callback to load the next batch of data. The library offers two APIs: a ready-made InfiniteScroll component that handles UI elements like loaders and end messages, and a useInfiniteScroll hook for developers who need custom markup and full control over the observer behavior.
The tool suits projects displaying long lists, feeds, or chat interfaces where loading all data upfront is impractical. It works across three scroll modes: window scroll for full-page feeds, fixed-height containers for embedded lists, and custom scrollable parents for existing overflow elements. The component includes built-in support for pull-to-refresh and inverse scroll patterns common in messaging applications. With zero runtime dependencies and a gzipped size around 4 kilobytes, it imposes minimal overhead. It supports React versions 17, 18, and 19, and integrates with data-fetching libraries like TanStack Query and SWR through its hook API.
The project maintains active engagement with pull requests and issues being addressed regularly. The codebase is written in TypeScript, providing type safety for consumers. Documentation includes practical examples for common frameworks and patterns, such as Next.js App Router integration and usage with popular data-fetching solutions. The component's API design reflects responsiveness to user needs, offering both a high-level component for typical cases and a lower-level hook for advanced customization scenarios.
