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

> postcss-import@17.0.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

PostCSS plugin to import CSS files

Last verified Sep 9, 2026 against postcss-import@17.0.0.

postcss-import ships CommonJS only. require("postcss-import") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=22.0.0. import "postcss-import" 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("postcss-import") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=22.0.0.
2. From ES modules use the default import: import postcssImport from "postcss-import"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/postcss-import

## Facts

- Latest: 17.0.0 (Aug 14, 2026)
- Module format: CommonJS
- Last CommonJS version: 17.0.0
- TypeScript types: @types/postcss-import
- Node engines: >=22.0.0
- Weekly downloads: 37.8M
- License: MIT

## Runtime test results for postcss-import@17.0.0

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

| Runtime | require("postcss-import") | import "postcss-import" |
|---|---|---|
| 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 postcss-import

ES modules:

```js
import postcssImport from "postcss-import";
```

CommonJS:

```js
const postcssImport = require("postcss-import");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (57 versions; the newest 57 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 17.0.0 | CommonJS | Aug 10, 2014 |

## Frequently asked

**Is postcss-import ESM-only?**

postcss-import@17.0.0 is a CommonJS package. postcss-import ships CommonJS only. require("postcss-import") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=22.0.0. import "postcss-import" 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 postcss-import with ES module syntax?**

Yes. import postcssImport from "postcss-import" 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 postcss-import work in Bun?**

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

**Does postcss-import ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/postcss-import".

## Links

- [postcss-import on npm](https://www.npmjs.com/package/postcss-import)
- [Source repository](https://github.com/postcss/postcss-import)
- [HTML version](https://canirequire.com/package/postcss-import/)
- [JSON version](https://canirequire.com/package/postcss-import.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.