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

> update-browserslist-db@1.3.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

CLI tool to update caniuse-lite to refresh target browsers from Browserslist config

Last verified Sep 9, 2026 against update-browserslist-db@1.3.2.

update-browserslist-db ships CommonJS only. require("update-browserslist-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "update-browserslist-db" 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("update-browserslist-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
2. From ES modules use the default import: import updateBrowserslistDb from "update-browserslist-db"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 1.3.2 (Aug 27, 2026)
- Module format: CommonJS
- Last CommonJS version: 1.3.2
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 157.2M
- License: MIT

## Runtime test results for update-browserslist-db@1.3.2

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

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

ES modules:

```js
import updateBrowserslistDb from "update-browserslist-db";
```

CommonJS:

```js
const updateBrowserslistDb = require("update-browserslist-db");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (29 versions; the newest 29 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 1.3.2 | CommonJS | Jun 21, 2022 |

## Frequently asked

**Is update-browserslist-db ESM-only?**

update-browserslist-db@1.3.2 is a CommonJS package. update-browserslist-db ships CommonJS only. require("update-browserslist-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "update-browserslist-db" 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 update-browserslist-db with ES module syntax?**

Yes. import updateBrowserslistDb from "update-browserslist-db" 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 update-browserslist-db work in Bun?**

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

**Does update-browserslist-db ship TypeScript types?**

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

## Links

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

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