swr open source analysis

React Hooks for Data Fetching

Project overview

⭐ 32234 · TypeScript · Last activity on GitHub: 2026-01-05

GitHub: https://github.com/vercel/swr

Why it matters for engineering teams

SWR addresses the common challenge of efficiently fetching and caching data in React applications, helping engineers maintain up-to-date interfaces without unnecessary network requests. It is particularly suited for frontend engineers and full-stack developers working with React or React Native who need a reliable, production ready solution for handling asynchronous data. The library is mature and widely adopted, proven in production environments by many engineering teams. However, it may not be the best fit for projects requiring complex state management beyond data fetching or when a self hosted option for caching and data control is a priority, as SWR relies on client-side caching and does not provide built-in server-side data storage.

When to use this project

SWR is a strong choice when building React applications that need simple, efficient data fetching with caching and revalidation out of the box. Teams should consider alternatives if they require more complex state management or server-side caching solutions.

Team fit and typical use cases

Frontend engineers and full-stack developers benefit most from SWR, using it to simplify data fetching logic in React and React Native projects. It commonly appears in web and mobile products where real-time or frequently updated data is displayed, offering an open source tool for engineering teams focused on performance and developer experience.

Topics and ecosystem

cache data data-fetching fetch hook hooks nextjs react react-native stale-while-revalidate suspense swr vercel

Activity and freshness

Latest commit on GitHub: 2026-01-05. Activity data is based on repeated RepoPi snapshots of the GitHub repository. It gives a quick, factual view of how alive the project is.