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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. Markdown · JSON

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

@babel/polyfill ships CommonJS only. require("@babel/polyfill") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. 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.

What to do

  1. require("@babel/polyfill") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
  2. From ES modules use the default import: import polyfill from "@babel/polyfill"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: no types are available for @babel/polyfill; declare the module yourself if you need them.
  4. This package is 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.
Latest
7.12.1 (Oct 15, 2020)
Module format
CommonJS
Last CommonJS version
7.12.1
TypeScript types
None
Node engines
not declared
Weekly downloads
1.6M
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 1.4.0✓ 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, corrected where a runtime test of that version contradicted them (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 on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. 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 1.4.0 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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