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

> microbundle-crl@0.13.11 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Zero-configuration bundler for tiny JS libs, powered by Rollup.

Last verified Sep 9, 2026 against microbundle-crl@0.13.11.

microbundle-crl ships CommonJS only. require("microbundle-crl") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "microbundle-crl" 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("microbundle-crl") 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 microbundleCrl from "microbundle-crl"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: no types are available for microbundle-crl; declare the module yourself if you need them.

## Facts

- Latest: 0.13.11 (Jun 30, 2020)
- Module format: CommonJS
- Last CommonJS version: 0.13.11
- TypeScript types: none
- Node engines: not declared
- Weekly downloads: 4K
- License: MIT

## Runtime test results for microbundle-crl@0.13.11

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

| Runtime | require("microbundle-crl") | import "microbundle-crl" |
|---|---|---|
| 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 microbundle-crl

ES modules:

```js
import microbundleCrl from "microbundle-crl";
```

CommonJS:

```js
const microbundleCrl = require("microbundle-crl");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (5 versions; the newest 5 shown).

| Versions | Format | First published |
|---|---|---|
| 0.13.7 – 0.13.11 | CommonJS | Mar 30, 2020 |

## Frequently asked

**Is microbundle-crl ESM-only?**

microbundle-crl@0.13.11 is a CommonJS package. microbundle-crl ships CommonJS only. require("microbundle-crl") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "microbundle-crl" 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 microbundle-crl with ES module syntax?**

Yes. import microbundleCrl from "microbundle-crl" 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 microbundle-crl work in Bun?**

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

**Does microbundle-crl ship TypeScript types?**

No. microbundle-crl ships no type declarations and there is no @types package for it.

## Links

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

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