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Is @material-ui/core ESM-only? Can you require() it?

React components that implement Google's Material Design.

Last verified Sep 9, 2026 against @material-ui/core@4.12.4. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

@material-ui/core ships CommonJS only. require("@material-ui/core") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0.0. import "@material-ui/core" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

What to do

  1. require("@material-ui/core") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0.0.
  2. From ES modules use the default import: import core from "@material-ui/core"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: types are bundled; install nothing extra.
  4. This package is deprecated: Material UI v4 doesn't receive active development since September 2021. See the guide https://mui.com/material-ui/migration/migration-v4/ to upgrade to v5.
Latest
4.12.4 (Apr 3, 2022)
Module format
CommonJS
Last CommonJS version
4.12.4
TypeScript types
Bundled
Node engines
>=8.0.0
Weekly downloads
822K
License
MIT

Deprecated: Material UI v4 doesn't receive active development since September 2021. See the guide https://mui.com/material-ui/migration/migration-v4/ to upgrade to v5.

Does @material-ui/core@4.12.4 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("@material-ui/core") from a CommonJS file and import "@material-ui/core" from an ES module.

Runtimerequire("@material-ui/core")import "@material-ui/core"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4.0✓ works✓ works

How to import @material-ui/core

ES modules (import)

import core from "@material-ui/core";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const core = require("@material-ui/core");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (101 versions; the newest 60 shown).

VersionsFormatFirst published
3.9.2 – 4.12.4CommonJSFeb 3, 2019

Frequently asked

Is @material-ui/core ESM-only?

@material-ui/core@4.12.4 is a CommonJS package. @material-ui/core ships CommonJS only. require("@material-ui/core") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=8.0.0. import "@material-ui/core" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import @material-ui/core with ES module syntax?

Yes. import core from "@material-ui/core" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does @material-ui/core work in Bun?

Yes. import "@material-ui/core" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does @material-ui/core ship TypeScript types?

Yes. @material-ui/core bundles its own type declarations; no @types package is needed.

Links

Other commonjs packages

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