# Is react-test-renderer ESM-only? Can you require() it?

> react-test-renderer@19.2.8 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

React package for snapshot testing.

Last verified Sep 9, 2026 against react-test-renderer@19.2.8.

react-test-renderer ships CommonJS only. require("react-test-renderer") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "react-test-renderer" 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("react-test-renderer") 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 reactTestRenderer from "react-test-renderer"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/react-test-renderer

## Facts

- Latest: 19.2.8 (Jul 21, 2026)
- Module format: CommonJS
- Last CommonJS version: 19.2.8
- TypeScript types: @types/react-test-renderer
- Node engines: not declared
- Weekly downloads: 6.4M
- License: MIT

## Runtime test results for react-test-renderer@19.2.8

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

| Runtime | require("react-test-renderer") | import "react-test-renderer" |
|---|---|---|
| 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 react-test-renderer

ES modules:

```js
import reactTestRenderer from "react-test-renderer";
```

CommonJS:

```js
const reactTestRenderer = require("react-test-renderer");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (86 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 16.5.0 – 19.2.8 | CommonJS | Sep 6, 2018 |

## Frequently asked

**Is react-test-renderer ESM-only?**

react-test-renderer@19.2.8 is a CommonJS package. react-test-renderer ships CommonJS only. require("react-test-renderer") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "react-test-renderer" 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 react-test-renderer with ES module syntax?**

Yes. import reactTestRenderer from "react-test-renderer" 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 react-test-renderer work in Bun?**

Yes. import "react-test-renderer" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does react-test-renderer ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/react-test-renderer".

## Links

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

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