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Is @testing-library/react ESM-only? Can you require() it?

Simple and complete React DOM testing utilities that encourage good testing practices.

Last verified Sep 9, 2026 against @testing-library/react@16.3.3. JSON

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

@testing-library/react ships CommonJS only. require("@testing-library/react") works everywhere. import "@testing-library/react" 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.

Latest
16.3.3 (Aug 27, 2026)
Module format
CommonJS
Last CommonJS version
16.3.3
TypeScript types
Bundled
Node engines
>=18
License
MIT

Does @testing-library/react@16.3.3 actually load? Runtime test results

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

Runtimerequire("@testing-library/react")import "@testing-library/react"
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 @testing-library/react

ES modules (import)

import react from "@testing-library/react";

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 react = require("@testing-library/react");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (103 versions; the newest 60 shown).

VersionsFormatFirst published
10.4.5 – 16.3.3CommonJSJul 8, 2020

Frequently asked

Is @testing-library/react ESM-only?

@testing-library/react@16.3.3 is a CommonJS package. @testing-library/react ships CommonJS only. require("@testing-library/react") works everywhere. import "@testing-library/react" 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 @testing-library/react with ES module syntax?

Yes. import react from "@testing-library/react" 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 @testing-library/react work in Bun?

Yes. import "@testing-library/react" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @testing-library/react ship TypeScript types?

Yes. @testing-library/react bundles its own type declarations; no @types package is needed.

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