Website Development

React Server Components vs Client Components: When to Use Which

2026-06-26 • 1 min read

React Server Components (RSC) represent a major shift in how web applications are rendered, enabling component loading directly on the backend.

By rendering components on the server, you reduce the JavaScript bundle size delivered to client browsers, improving performance.

Use Client Components only when you need interactive features like state hooks (useState), event listeners, or browser APIs.

Keep data fetching logic inside Server Components to secure database queries and API keys from client-side exposure.

Structuring your app with server components by default ensures optimal loading speeds and better search engine crawlability.