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

> browserslist@4.28.9 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Share target browsers between different front-end tools, like Autoprefixer, Stylelint and babel-env-preset

Last verified Sep 9, 2026 against browserslist@4.28.9.

browserslist ships CommonJS only. require("browserslist") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7. import "browserslist" 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("browserslist") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7.
2. From ES modules use the default import: import browserslist from "browserslist"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 4.28.9 (Sep 4, 2026)
- Module format: CommonJS
- Last CommonJS version: 4.28.9
- TypeScript types: bundled
- Node engines: ^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7
- Weekly downloads: 170.7M
- License: MIT

## Runtime test results for browserslist@4.28.9

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

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

ES modules:

```js
import browserslist from "browserslist";
```

CommonJS:

```js
const browserslist = require("browserslist");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (217 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 4.17.4 – 4.28.9 | CommonJS | Oct 13, 2021 |

## Frequently asked

**Is browserslist ESM-only?**

browserslist@4.28.9 is a CommonJS package. browserslist ships CommonJS only. require("browserslist") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7. import "browserslist" 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 browserslist with ES module syntax?**

Yes. import browserslist from "browserslist" 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 browserslist work in Bun?**

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

**Does browserslist ship TypeScript types?**

Yes. browserslist bundles its own type declarations; no @types package is needed.

## Links

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