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Is babel-jest ESM-only? Can you require() it?

Jest plugin to use babel for transformation.

Last verified Sep 9, 2026 against babel-jest@30.5.1. Markdown · JSON

Dual (CommonJS + ESM) Dual package — require() works on every Node.js version we test; import works too

babel-jest publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("babel-jest") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import "babel-jest" works alongside it.

What to do

  1. Nothing to change. require("babel-jest") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import * as babelJest from "babel-jest" works alongside it; use named imports for what the ESM entry exports.
  2. TypeScript: types are bundled; install nothing extra.
Latest
30.5.1 (Sep 1, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
30.5.1
Native ESM since
30.0.0
TypeScript types
Bundled
Node engines
^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0
Weekly downloads
48.8M
License
MIT

Does babel-jest@30.5.1 actually load? Runtime test results

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

Runtimerequire("babel-jest")import "babel-jest"
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-jest

ES modules (import)

import * as babelJest from "babel-jest";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

const babelJest = require("babel-jest");

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 (162 versions; the newest 60 shown).

VersionsFormatFirst published
30.0.0 – 30.5.1Dual (CommonJS + ESM)Jun 10, 2025
27.2.0 – 29.7.0CommonJSSep 13, 2021

Frequently asked

Is babel-jest ESM-only?

babel-jest@30.5.1 ships CommonJS and ESM builds. babel-jest publishes both a CommonJS entry and a native ESM entry (ESM added in 30.0.0). require("babel-jest") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0. import "babel-jest" works alongside it.

Can I require babel-jest?

Yes. babel-jest ships a CommonJS entry alongside the native ESM entry. require("babel-jest") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0.

Does babel-jest work in Bun?

Yes. import "babel-jest" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does babel-jest ship TypeScript types?

Yes. babel-jest bundles its own type declarations; no @types package is needed.

Links

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