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

> jszip@3.10.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Create, read and edit .zip files with JavaScript http://stuartk.com/jszip

Last verified Sep 9, 2026 against jszip@3.10.2.

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

## Facts

- Latest: 3.10.2 (Sep 8, 2026)
- Module format: CommonJS
- Last CommonJS version: 3.10.2
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 30.2M
- License: (MIT OR GPL-3.0-or-later)

## Runtime test results for jszip@3.10.2

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

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

ES modules:

```js
import jszip from "jszip";
```

CommonJS:

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

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (38 versions; the newest 38 shown).

| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 3.10.2 | CommonJS | Sep 11, 2013 |

## Frequently asked

**Is jszip ESM-only?**

jszip@3.10.2 is a CommonJS package. jszip ships CommonJS only. require("jszip") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "jszip" 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 jszip with ES module syntax?**

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

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

**Does jszip ship TypeScript types?**

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

## Links

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

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