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Is gulp-autoprefixer ESM-only? Can you require() it?

Prefix CSS

Last verified Sep 9, 2026 against gulp-autoprefixer@10.0.0. JSON

ESM-only ESM-only since 9.0.0 — last CommonJS version is 8.0.0

gulp-autoprefixer dropped its CommonJS build in 9.0.0 (November 2023). The last version you can require() on every Node.js version, including 18 and older, is 8.0.0, published May 29, 2021.

On Node.js 20.19+, 22.12+ and every newer release, require("gulp-autoprefixer") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

gulp-autoprefixer@10.0.0 declares engines ">=20", so Node.js 18 is outside its supported range regardless of module format.

Latest
10.0.0 (Sep 11, 2025)
Module format
ESM-only
Last CommonJS version
8.0.0
ESM-only since
9.0.0 (Nov 2, 2023)
TypeScript types
Bundled
Node engines
>=20
Weekly downloads
210K
License
MIT

Does gulp-autoprefixer@10.0.0 actually load? Runtime test results

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

Runtimerequire("gulp-autoprefixer")import "gulp-autoprefixer"
Node.js 18✗ failsERR_REQUIRE_ESM✓ 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 gulp-autoprefixer

ES modules (import)

import gulpAutoprefixer from "gulp-autoprefixer";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const gulpAutoprefixer = require("gulp-autoprefixer");

// Any Node.js version:
const gulpAutoprefixer = await import("gulp-autoprefixer");

// Or pin the last CommonJS release:
// npm install gulp-autoprefixer@8.0.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm (32 versions; the newest 32 shown).

VersionsFormatFirst published
9.0.0 – 10.0.0ESM-onlyNov 2, 2023
0.0.1 – 8.0.0CommonJSDec 1, 2013

Frequently asked

Is gulp-autoprefixer ESM-only?

gulp-autoprefixer@10.0.0 is ESM-only. gulp-autoprefixer dropped its CommonJS build in 9.0.0 (November 2023). The last version you can require() on every Node.js version, including 18 and older, is 8.0.0, published May 29, 2021.

Which version of gulp-autoprefixer still supports CommonJS / require()?

8.0.0 is the last version of gulp-autoprefixer with a CommonJS build. Install it with "npm install gulp-autoprefixer@8.0.0". Every version from 9.0.0 on is ESM-only.

How do I use gulp-autoprefixer from a CommonJS file?

Use a dynamic import: const mod = await import("gulp-autoprefixer"). On Node.js 20.19+, 22.12+ and newer, a plain require("gulp-autoprefixer") also works for ESM packages that do not use top-level await. Alternatively pin gulp-autoprefixer@8.0.0.

Does gulp-autoprefixer work in Bun?

Yes. import "gulp-autoprefixer" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does gulp-autoprefixer ship TypeScript types?

Yes. gulp-autoprefixer bundles its own type declarations; no @types package is needed.

Links

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