# Is @vue/test-utils ESM-only? Can you require() it?

> @vue/test-utils@2.5.0 ships CommonJS and ESM builds. Dual package — require() works on every Node.js version we test; import works too.

Last verified Sep 9, 2026 against @vue/test-utils@2.5.0.

@vue/test-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 1.3.1). require("@vue/test-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@vue/test-utils" works alongside it.

## What to do

1. Nothing to change. require("@vue/test-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import * as testUtils from "@vue/test-utils" works alongside it; use named imports for what the ESM entry exports.
2. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 2.5.0 (Aug 27, 2026)
- Module format: Dual (CommonJS + ESM)
- Last CommonJS version: 2.5.0
- Native ESM since: 1.3.1
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 4.3M
- License: MIT

## Runtime test results for @vue/test-utils@2.5.0

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

| Runtime | require("@vue/test-utils") | import "@vue/test-utils" |
|---|---|---|
| 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 @vue/test-utils

ES modules:

```js
import * as testUtils from "@vue/test-utils";
```

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

CommonJS:

```js
const testUtils = require("@vue/test-utils");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (52 versions; the newest 52 shown).

| Versions | Format | First published |
|---|---|---|
| 1.3.2 – 2.5.0 | Dual (CommonJS + ESM) | Oct 31, 2022 |
| 1.3.1 | ESM-only | Oct 31, 2022 |
| 1.0.0 – 1.3.0 | CommonJS | May 5, 2020 |

## Frequently asked

**Is @vue/test-utils ESM-only?**

@vue/test-utils@2.5.0 ships CommonJS and ESM builds. @vue/test-utils publishes both a CommonJS entry and a native ESM entry (ESM added in 1.3.1). require("@vue/test-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@vue/test-utils" works alongside it.

**Can I require @vue/test-utils?**

Yes. @vue/test-utils ships a CommonJS entry alongside the native ESM entry. require("@vue/test-utils") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.

**Does @vue/test-utils work in Bun?**

Yes. import "@vue/test-utils" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does @vue/test-utils ship TypeScript types?**

Yes. @vue/test-utils bundles its own type declarations; no @types package is needed.

## Links

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

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