Next.js Image Optimization: How next/image Works
The next/image component auto-resizes, converts to WebP, and lazy loads images. Learn how to use it correctly for maximum performance.
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Tags: image, nextjs, performance
Next.js Image Component: next/image Optimization Guide The Next.js component () is the most important performance tool in the Next.js ecosystem for image-heavy applications. It automatically handles format conversion, responsive sizing, lazy loading, and placeholder generation — things that would otherwise require a full image CDN setup or careful manual implementation. This guide covers every significant feature of , common configuration patterns, and the mistakes that prevent it from working correctly. Why next/image Exists The standard HTML tag does not do anything automatically — if you write in a Next.js app, that 4MB JPEG ships to every user exactly as-is. intercepts the image request, resizes it on demand via a built-in image optimization API (), converts it to WebP or AVIF based…
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