Server Components
React components that run exclusively on the server, rendering HTML before it reaches the browser.
What are Server Components?
Server Components are React components that run only on the server and never ship JavaScript to the browser.
They render on the server, send HTML to the client, and can directly access databases or APIs without exposing credentials. Think of them as a way to keep heavy logic server-side while still writing React.
Builders use them in Next.js to fetch data directly in components, reduce bundle sizes, and speed up initial page loads. You write regular React code, but it executes on the server and sends rendered content to users.
Available in Next.js 13+ with the App Router. The paradigm shift means faster apps and smaller JavaScript bundles, especially for data-heavy pages.
Good to Know
Run exclusively on the server - zero JavaScript sent to the browser for these components
Can directly access databases, file systems, and APIs without exposing credentials
Reduce bundle sizes significantly by keeping data-fetching logic server-side
Work alongside Client Components - you mix both in the same app
Built into Next.js 13+ with the App Router as the default component type
How Vibe Coders Use Server Components
Fetching user data from your database directly in a component without writing API routes
Building marketing pages that load instantly because there's no JavaScript to parse
Accessing environment variables and secrets safely without exposing them to the browser
Rendering complex data visualizations on the server to send just the HTML
Frequently Asked Questions
Related Terms
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