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

> uri-js@4.4.1 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

An RFC 3986/3987 compliant, scheme extendable URI/IRI parsing/validating/resolving library for JavaScript.

Last verified Sep 9, 2026 against uri-js@4.4.1.

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

## Facts

- Latest: 4.4.1 (Jan 10, 2021)
- Module format: CommonJS
- Last CommonJS version: 4.4.1
- TypeScript types: bundled
- Node engines: not declared
- Weekly downloads: 134.2M
- License: BSD-2-Clause

## Runtime test results for uri-js@4.4.1

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

| Runtime | require("uri-js") | import "uri-js" |
|---|---|---|
| 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 uri-js

ES modules:

```js
import uriJs from "uri-js";
```

CommonJS:

```js
const uriJs = require("uri-js");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (14 versions; the newest 14 shown).

| Versions | Format | First published |
|---|---|---|
| 1.4.0 – 4.4.1 | CommonJS | Mar 13, 2012 |

## Frequently asked

**Is uri-js ESM-only?**

uri-js@4.4.1 is a CommonJS package. uri-js ships CommonJS only. require("uri-js") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "uri-js" 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 uri-js with ES module syntax?**

Yes. import uriJs from "uri-js" 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 uri-js work in Bun?**

Yes. import "uri-js" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does uri-js ship TypeScript types?**

Yes. uri-js bundles its own type declarations; no @types package is needed.

## Links

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