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Is postcss-scss ESM-only? Can you require() it?

SCSS parser for PostCSS

Last verified Sep 9, 2026 against postcss-scss@4.0.9. JSON

Dual (CommonJS + ESM) Dual package — both require() and import work

postcss-scss publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("postcss-scss") and import "postcss-scss" both work on every supported Node.js version and in Bun.

Latest
4.0.9 (Sep 28, 2023)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
4.0.9
Native ESM since
3.0.0
TypeScript types
Bundled
Node engines
>=12.0
Weekly downloads
5.2M
License
MIT

Does postcss-scss@4.0.9 actually load? Runtime test results

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

Runtimerequire("postcss-scss")import "postcss-scss"
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 postcss-scss

ES modules (import)

import postcssScss from "postcss-scss";

CommonJS (require)

const postcssScss = require("postcss-scss");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (42 versions; the newest 42 shown).

VersionsFormatFirst published
3.0.0 – 4.0.9Dual (CommonJS + ESM)Sep 15, 2020
0.1.0 – 2.1.1CommonJSAug 19, 2015

Frequently asked

Is postcss-scss ESM-only?

postcss-scss@4.0.9 ships CommonJS and ESM builds. postcss-scss publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("postcss-scss") and import "postcss-scss" both work on every supported Node.js version and in Bun.

Can I require postcss-scss?

Yes. postcss-scss ships a CommonJS entry, so require("postcss-scss") works on every Node.js version, alongside the native ESM entry for import.

Does postcss-scss work in Bun?

Yes. import "postcss-scss" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does postcss-scss ship TypeScript types?

Yes. postcss-scss bundles its own type declarations; no @types package is needed.

Links

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