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Is @babel/polyfill ESM-only? Can you require() it?

Provides polyfills necessary for a full ES2015+ environment

Last verified Sep 9, 2026 against @babel/polyfill@7.12.1. JSON

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

@babel/polyfill ships CommonJS only. require("@babel/polyfill") works everywhere. import "@babel/polyfill" 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.

Latest
7.12.1 (Oct 15, 2020)
Module format
CommonJS
Last CommonJS version
7.12.1
TypeScript types
None
Node engines
not declared
License
MIT

Deprecated: 🚨 This package has been deprecated in favor of separate inclusion of a polyfill and regenerator-runtime (when needed). See the @babel/polyfill docs (https://babeljs.io/docs/en/babel-polyfill) for more information.

Does @babel/polyfill@7.12.1 actually load? Runtime test results

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

Runtimerequire("@babel/polyfill")import "@babel/polyfill"
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✓ works✓ works

How to import @babel/polyfill

ES modules (import)

import polyfill from "@babel/polyfill";

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 polyfill = require("@babel/polyfill");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (15 versions; the newest 15 shown).

VersionsFormatFirst published
7.0.0 – 7.12.1CommonJSAug 27, 2018

Frequently asked

Is @babel/polyfill ESM-only?

@babel/polyfill@7.12.1 is a CommonJS package. @babel/polyfill ships CommonJS only. require("@babel/polyfill") works everywhere. import "@babel/polyfill" 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 @babel/polyfill with ES module syntax?

Yes. import polyfill from "@babel/polyfill" 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 @babel/polyfill work in Bun?

Yes. import "@babel/polyfill" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @babel/polyfill ship TypeScript types?

No. @babel/polyfill ships no type declarations and there is no @types package for it.

Links

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