UNPKG ESM

esm.unpkg.com is currently in beta. It serves browser-ready ES modules from npm packages using UNPKG infrastructure. Use it when a package is not already published as browser-ready ESM and you want to load it directly in modern browsers without a build step.

https://esm.unpkg.com/:package@:version/:subpath

Example

Import packages from esm.unpkg.com in a module script:

<script type="module">
  import React from "https://esm.unpkg.com/react@18.3.1";
  import { createRoot } from "https://esm.unpkg.com/react-dom@18.3.1/client";

  createRoot(document.getElementById("root")).render(
    React.createElement("h1", null, "Hello from esm.unpkg.com")
  );
</script>

Usage

Omit the version to use the package's latest npm tag.
Use npm dist-tags, semver ranges, or exact versions in the URL.
Add ?target=es2022 to choose an output target.
Add ?dev for development builds.
Add ?bundle, ?standalone, or ?no-bundle to control bundling.
Add ?meta to inspect resolved module metadata.

Documentation

For official UNPKG documentation, including package URLs, exports, metadata, import maps, and browser module options, visit the main UNPKG home page. The browser modules section is available at https://unpkg.com/#browser-modules.