# Is enzyme ESM-only? Can you require() it?

> enzyme@3.11.0 declares a CommonJS entry, but require() fails at runtime. CommonJS on paper — require() failed in our runtime test.

JavaScript Testing utilities for React

Last verified Sep 9, 2026 against enzyme@3.11.0.

enzyme declares a CommonJS entry only, but require("enzyme") failed on every Node.js version in our probe: ERR_PACKAGE_PATH_NOT_EXPORTED. import "enzyme" resolves to the same file, so it fails the same way. That usually means a missing peer dependency, a browser-only global, or a package that is not meant to be loaded directly; see the runtime table below.

## What to do

1. require("enzyme") failed in our probe on every Node.js version (ERR_PACKAGE_PATH_NOT_EXPORTED); check the package README for peer dependencies or setup before relying on it.
2. From ES modules use the default import: import enzyme from "enzyme"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/enzyme

## Facts

- Latest: 3.11.0 (Dec 20, 2019)
- Module format: CommonJS
- Last CommonJS version: 3.11.0
- TypeScript types: @types/enzyme
- Node engines: not declared
- Weekly downloads: 1.2M
- License: MIT

## Runtime test results for enzyme@3.11.0

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

| Runtime | require("enzyme") | import "enzyme" |
|---|---|---|
| Node.js 18 | fails (ReferenceError) | fails (ReferenceError) |
| Node.js 20 | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) |
| Node.js 22 | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) |
| Node.js 24 | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) |
| Node.js 26 | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) | fails (ERR_PACKAGE_PATH_NOT_EXPORTED) |
| Bun 1.4.0 | fails (Error) | fails (Error) |

## How to import enzyme

ES modules:

```js
import enzyme from "enzyme";
```

CommonJS:

```js
// require("enzyme") failed in our probe on every Node.js version we test (ERR_PACKAGE_PATH_NOT_EXPORTED); see the runtime table.
const enzyme = require("enzyme");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (45 versions; the newest 45 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 3.11.0 | CommonJS | Dec 6, 2015 |

## Frequently asked

**Is enzyme ESM-only?**

enzyme@3.11.0 declares a CommonJS entry, but require() fails at runtime. enzyme declares a CommonJS entry only, but require("enzyme") failed on every Node.js version in our probe: ERR_PACKAGE_PATH_NOT_EXPORTED. import "enzyme" resolves to the same file, so it fails the same way. That usually means a missing peer dependency, a browser-only global, or a package that is not meant to be loaded directly; see the runtime table below.

**Can I require enzyme?**

Not in practice. enzyme declares a CommonJS entry, but require("enzyme") failed on every Node.js version in our probe: ERR_PACKAGE_PATH_NOT_EXPORTED. Check the package README for peer dependencies or setup before relying on it.

**Can I import enzyme with ES module syntax?**

Yes. import enzyme from "enzyme" 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 enzyme work in Bun?**

Importing enzyme failed in Bun 1.4.0 on Sep 9, 2026: error: Cannot find module 'cheerio/lib/utils' from '/Users/boat/Projects/top-seo/data/probe-work/enzyme/node_modules/enzyme/build/Utils.js'

**Does enzyme ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/enzyme".

## Links

- [enzyme on npm](https://www.npmjs.com/package/enzyme)
- [Source repository](https://github.com/airbnb/enzyme)
- [HTML version](https://canirequire.com/package/enzyme/)
- [JSON version](https://canirequire.com/package/enzyme.json)

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