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Is webpack-stream ESM-only? Can you require() it?

Run webpack as a stream

Last verified Sep 9, 2026 against webpack-stream@7.0.0. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

webpack-stream ships CommonJS only. require("webpack-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.0.0. import "webpack-stream" 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("webpack-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.0.0.
  2. From ES modules use the default import: import webpackStream from "webpack-stream"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/webpack-stream
Latest
7.0.0 (Aug 31, 2021)
Module format
CommonJS
Last CommonJS version
7.0.0
TypeScript types
@types/webpack-stream
Node engines
>= 10.0.0
Weekly downloads
195K
License
MIT

Does webpack-stream@7.0.0 actually load? Runtime test results

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

Runtimerequire("webpack-stream")import "webpack-stream"
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 webpack-stream

ES modules (import)

import webpackStream from "webpack-stream";

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 webpackStream = require("webpack-stream");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (23 versions; the newest 23 shown).

VersionsFormatFirst published
2.0.0 – 7.0.0CommonJSJun 9, 2015

Frequently asked

Is webpack-stream ESM-only?

webpack-stream@7.0.0 is a CommonJS package. webpack-stream ships CommonJS only. require("webpack-stream") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 10.0.0. import "webpack-stream" 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 webpack-stream with ES module syntax?

Yes. import webpackStream from "webpack-stream" 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 webpack-stream work in Bun?

Yes. import "webpack-stream" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does webpack-stream ship TypeScript types?

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

Links

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