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

> kleur@4.1.5 ships CommonJS and ESM builds. Dual package — require() works on every Node.js version we test; import works too.

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Last verified Sep 9, 2026 against kleur@4.1.5.

kleur publishes both a CommonJS entry and a native ESM entry (ESM added in 4.0.0). require("kleur") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "kleur" works alongside it.

## What to do

1. Nothing to change. require("kleur") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import * as kleur from "kleur" works alongside it; use named imports for what the ESM entry exports.
2. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 4.1.5 (Jun 26, 2022)
- Module format: Dual (CommonJS + ESM)
- Last CommonJS version: 4.1.5
- Native ESM since: 4.0.0
- TypeScript types: bundled
- Node engines: >=6
- Weekly downloads: 70.9M
- License: MIT

## Runtime test results for kleur@4.1.5

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

| Runtime | require("kleur") | import "kleur" |
|---|---|---|
| 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 kleur

ES modules:

```js
import * as kleur from "kleur";
```

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

CommonJS:

```js
const kleur = require("kleur");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (21 versions; the newest 21 shown).

| Versions | Format | First published |
|---|---|---|
| 4.0.0 – 4.1.5 | Dual (CommonJS + ESM) | Jun 17, 2020 |
| 0.0.0 – 3.0.3 | CommonJS | Jul 8, 2018 |

## Frequently asked

**Is kleur ESM-only?**

kleur@4.1.5 ships CommonJS and ESM builds. kleur publishes both a CommonJS entry and a native ESM entry (ESM added in 4.0.0). require("kleur") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "kleur" works alongside it.

**Can I require kleur?**

Yes. kleur ships a CommonJS entry alongside the native ESM entry. require("kleur") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.

**Does kleur work in Bun?**

Yes. import "kleur" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does kleur ship TypeScript types?**

Yes. kleur bundles its own type declarations; no @types package is needed.

## Links

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

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