# Is @reduxjs/toolkit ESM-only? Can you require() it?

> @reduxjs/toolkit@2.12.0 ships CommonJS and ESM builds. Dual package — require() works on every Node.js version we test; import works too.

The official, opinionated, batteries-included toolset for efficient Redux development

Last verified Sep 9, 2026 against @reduxjs/toolkit@2.12.0.

@reduxjs/toolkit publishes both a CommonJS entry and a native ESM entry (ESM added in 2.0.0). require("@reduxjs/toolkit") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@reduxjs/toolkit" works alongside it.

## What to do

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

## Facts

- Latest: 2.12.0 (May 15, 2026)
- Module format: Dual (CommonJS + ESM)
- Last CommonJS version: 2.12.0
- Native ESM since: 2.0.0
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 26.4M
- License: MIT

## Runtime test results for @reduxjs/toolkit@2.12.0

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

| Runtime | require("@reduxjs/toolkit") | import "@reduxjs/toolkit" |
|---|---|---|
| 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 @reduxjs/toolkit

ES modules:

```js
import * as toolkit from "@reduxjs/toolkit";
```

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

CommonJS:

```js
const toolkit = require("@reduxjs/toolkit");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (71 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 2.0.0 – 2.12.0 | Dual (CommonJS + ESM) | Dec 4, 2023 |
| 1.3.2 – 1.9.7 | CommonJS | Mar 28, 2020 |

## Frequently asked

**Is @reduxjs/toolkit ESM-only?**

@reduxjs/toolkit@2.12.0 ships CommonJS and ESM builds. @reduxjs/toolkit publishes both a CommonJS entry and a native ESM entry (ESM added in 2.0.0). require("@reduxjs/toolkit") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "@reduxjs/toolkit" works alongside it.

**Can I require @reduxjs/toolkit?**

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

**Does @reduxjs/toolkit work in Bun?**

Yes. import "@reduxjs/toolkit" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does @reduxjs/toolkit ship TypeScript types?**

Yes. @reduxjs/toolkit bundles its own type declarations; no @types package is needed.

## Links

- [@reduxjs/toolkit on npm](https://www.npmjs.com/package/@reduxjs/toolkit)
- [Source repository](https://github.com/reduxjs/redux-toolkit)
- [HTML version](https://canirequire.com/package/@reduxjs/toolkit/)
- [JSON version](https://canirequire.com/package/@reduxjs/toolkit.json)

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