Next.js Dynamic Imports Explained — Lazy Loading Components

DodaTech Updated 2026-06-28 1 min read

In this tutorial, you will learn about Next.js Dynamic Imports Explained. We cover key concepts, practical examples, and best practices to help you master this topic.

Next.js dynamic imports with next/dynamic enable component-level Code Splitting, Lazy Loading heavy components on demand, and conditionally disabling server-side rendering.

What You'll Learn

next/dynamic import syntax
SSR toggle for browser-only components
Named exports with dynamic
Loading and error states
Performance measurement

Why It Matters

Dynamic imports reduce initial bundle size by splitting heavy components (charts, editors, maps) into separate chunks loaded only when needed.

import dynamic from "next/dynamic";

const HeavyChart = dynamic(() => import("./HeavyChart"), {
  loading: () => <div className="skeleton" style={{ height: 400 }} />,
  ssr: false,
});

const MarkdownEditor = dynamic(() => import("./MarkdownEditor"), {
  loading: () => <textarea disabled placeholder="Loading editor..." />,
  ssr: false,
});

const MapComponent = dynamic(
  () => import("./MapComponent").then(mod => mod.MapView),
  { ssr: false }
);

export default function Dashboard() {
  const [showChart, setShowChart] = useState(false);

  return (
    <div>
      <button onClick={() => setShowChart(true)}>
        {showChart ? "Hide" : "Show"} Analytics
      </button>
      {showChart && <HeavyChart />}
      <MarkdownEditor />
      <MapComponent center={[40.7128, -74.006]} zoom={12} />
    </div>
  );
}

Expected output: HeavyChart loads on demand with skeleton placeholder, MarkdownEditor and MapComponent are client-only, all are separate chunks.

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