# Is grunt-contrib-uglify ESM-only? Can you require() it?

> grunt-contrib-uglify@5.2.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Minify JavaScript files with UglifyJS

Last verified Sep 9, 2026 against grunt-contrib-uglify@5.2.2.

grunt-contrib-uglify ships CommonJS only. require("grunt-contrib-uglify") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12. import "grunt-contrib-uglify" 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("grunt-contrib-uglify") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.
2. From ES modules use the default import: import gruntContribUglify from "grunt-contrib-uglify"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: no types are available for grunt-contrib-uglify; declare the module yourself if you need them.

## Facts

- Latest: 5.2.2 (Jun 21, 2022)
- Module format: CommonJS
- Last CommonJS version: 5.2.2
- TypeScript types: none
- Node engines: >=12
- Weekly downloads: 365K
- License: MIT

## Runtime test results for grunt-contrib-uglify@5.2.2

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

| Runtime | require("grunt-contrib-uglify") | import "grunt-contrib-uglify" |
|---|---|---|
| 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 grunt-contrib-uglify

ES modules:

```js
import gruntContribUglify from "grunt-contrib-uglify";
```

CommonJS:

```js
const gruntContribUglify = require("grunt-contrib-uglify");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (51 versions; the newest 51 shown).

| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 5.2.2 | CommonJS | Dec 14, 2012 |

## Frequently asked

**Is grunt-contrib-uglify ESM-only?**

grunt-contrib-uglify@5.2.2 is a CommonJS package. grunt-contrib-uglify ships CommonJS only. require("grunt-contrib-uglify") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12. import "grunt-contrib-uglify" 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 grunt-contrib-uglify with ES module syntax?**

Yes. import gruntContribUglify from "grunt-contrib-uglify" 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 grunt-contrib-uglify work in Bun?**

Yes. import "grunt-contrib-uglify" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does grunt-contrib-uglify ship TypeScript types?**

No. grunt-contrib-uglify ships no type declarations and there is no @types package for it.

## Links

- [grunt-contrib-uglify on npm](https://www.npmjs.com/package/grunt-contrib-uglify)
- [Source repository](https://github.com/gruntjs/grunt-contrib-uglify)
- [HTML version](https://canirequire.com/package/grunt-contrib-uglify/)
- [JSON version](https://canirequire.com/package/grunt-contrib-uglify.json)

---

For scripts and AI agents: any package is at https://canirequire.com/package/<name>/index.md (Markdown) or https://canirequire.com/package/<name>.json (JSON); the site index is https://canirequire.com/llms.txt. Fetch the URL directly; no search needed.