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SWR

A lightweight data fetching library for React that provides built-in caching, automatic revalidation, and request deduplication for seamless performance.

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Managing remote data in React applications is simplified through a powerful hook-based approach. By utilizing a single hook, you can handle the entire lifecycle of a request, including caching, revalidation, and deduplication. This ensures your components remain responsive while keeping the displayed information accurate and up to date.

The library is designed to be agnostic, meaning it works seamlessly with any data source, whether you are using REST, GraphQL, or custom fetchers. It provides a robust set of features out of the box, such as:

  • Automatic revalidation on window focus or network recovery.
  • Optimistic UI updates for instant user feedback.
  • Built-in support for pagination and infinite scrolling.
  • Suspense compatibility for modern React patterns.

By prioritizing performance and developer experience, this tool helps eliminate common pitfalls in data management. It handles complex scenarios like polling, dependency-based fetching, and error retries with minimal configuration, allowing you to focus on building features rather than managing network states.

Categories:
Downloads
8,889,966
Stars
32,328
Last published
Feb 27, 2026
Last commit
7 days ago
License
MIT

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