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

> is-glob@4.0.3 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Last verified Sep 9, 2026 against is-glob@4.0.3.

is-glob ships CommonJS only. require("is-glob") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=0.10.0. import "is-glob" 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("is-glob") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=0.10.0.
2. From ES modules use the default import: import isGlob from "is-glob"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/is-glob

## Facts

- Latest: 4.0.3 (Sep 29, 2021)
- Module format: CommonJS
- Last CommonJS version: 4.0.3
- TypeScript types: @types/is-glob
- Node engines: >=0.10.0
- Weekly downloads: 137.4M
- License: MIT

## Runtime test results for is-glob@4.0.3

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

| Runtime | require("is-glob") | import "is-glob" |
|---|---|---|
| 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 is-glob

ES modules:

```js
import isGlob from "is-glob";
```

CommonJS:

```js
const isGlob = require("is-glob");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (16 versions; the newest 16 shown).

| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 4.0.3 | CommonJS | Dec 18, 2014 |

## Frequently asked

**Is is-glob ESM-only?**

is-glob@4.0.3 is a CommonJS package. is-glob ships CommonJS only. require("is-glob") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=0.10.0. import "is-glob" 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 is-glob with ES module syntax?**

Yes. import isGlob from "is-glob" 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 is-glob work in Bun?**

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

**Does is-glob ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/is-glob".

## Links

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