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Using JSR with Next.js

Next.js is a React framework for building full-stack web applications.

JSR packages can be used in Next.js by using JSR’s npm compatibility layer.

First, create a new Next.js project:

npx create-next-app@latest
yarn create next-app
pnpm create next-app

You can then add JSR packages with the jsr CLI. This will add the package to your package.json and install it into your node_modules folder using your preferred package manager (npm, yarn, or pnpm).

npx jsr add @std/encoding

Note: You should check the .npmrc file that is created into source control. Without this, future calls to npm install / yarn / pnpm install will not succeed.

You can then import JSR packages in your code:

import { encodeBase64 } from "@std/encoding/base64";

export default function Home() {
  return <main>{encodeBase64("Hello, world!")}</main>;

Running next dev to start the local development server will serve your application at http://localhost:3000/. You can then visit http://localhost:3000/ to see it.

$ next dev

Learn more about using packages.

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