canirequire › CommonJS › uglify-es
Is uglify-es ESM-only? Can you require() it?
JavaScript parser, mangler/compressor and beautifier toolkit for ES6+
Last verified Sep 9, 2026 against uglify-es@3.3.9. JSON
CommonJS CommonJS — require() works on every Node.js version
uglify-es ships CommonJS only. require("uglify-es") works everywhere. import "uglify-es" 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.
Deprecated: support for ECMAScript is superseded by `uglify-js` as of v3.13.0
Does uglify-es@3.3.9 actually load? Runtime test results
Installed and executed on Sep 9, 2026 with require("uglify-es") from a CommonJS file and import "uglify-es" from an ES module.
| Runtime | require("uglify-es") | import "uglify-es" |
|---|---|---|
| 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 | ✓ works | ✓ works |
How to import uglify-es
ES modules (import)
import uglifyEs from "uglify-es";Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.
CommonJS (require)
const uglifyEs = require("uglify-es");Module format by version
Derived from the type, main and exports fields of every stable release on npm (50 versions; the newest 50 shown).
| Versions | Format | First published |
|---|---|---|
| 3.0.2 – 3.3.10 | CommonJS | May 9, 2017 |
Frequently asked
Is uglify-es ESM-only?
uglify-es@3.3.9 is a CommonJS package. uglify-es ships CommonJS only. require("uglify-es") works everywhere. import "uglify-es" 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 uglify-es with ES module syntax?
Yes. import uglifyEs from "uglify-es" 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 uglify-es work in Bun?
Yes. import "uglify-es" loaded successfully in Bun 1.4 on Sep 9, 2026.
Does uglify-es ship TypeScript types?
Not bundled. Install the community types with "npm install -D @types/uglify-es".
Links
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