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

> wordwrap@1.0.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Wrap those words. Show them at what columns to start and stop.

Last verified Sep 9, 2026 against wordwrap@1.0.0.

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

## Facts

- Latest: 1.0.0 (May 7, 2015)
- Module format: CommonJS
- Last CommonJS version: 1.0.0
- TypeScript types: @types/wordwrap
- Node engines: not declared
- Weekly downloads: 44.7M
- License: MIT

## Runtime test results for wordwrap@1.0.0

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

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

ES modules:

```js
import wordwrap from "wordwrap";
```

CommonJS:

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

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (4 versions; the newest 4 shown).

| Versions | Format | First published |
|---|---|---|
| 0.0.1 – 1.0.0 | CommonJS | May 30, 2011 |

## Frequently asked

**Is wordwrap ESM-only?**

wordwrap@1.0.0 is a CommonJS package. wordwrap ships CommonJS only. require("wordwrap") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "wordwrap" 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 wordwrap with ES module syntax?**

Yes. import wordwrap from "wordwrap" 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 wordwrap work in Bun?**

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

**Does wordwrap ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/wordwrap".

## Links

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

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