# Is @jridgewell/resolve-uri ESM-only? Can you require() it?

> @jridgewell/resolve-uri@3.1.2 ships CommonJS and ESM builds. Dual package — require() works on every Node.js version we test; import works too.

Resolve a URI relative to an optional base URI

Last verified Sep 9, 2026 against @jridgewell/resolve-uri@3.1.2.

@jridgewell/resolve-uri publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("@jridgewell/resolve-uri") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.0.0. import "@jridgewell/resolve-uri" works alongside it.

## What to do

1. Nothing to change. require("@jridgewell/resolve-uri") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.0.0. import * as resolveUri from "@jridgewell/resolve-uri" works alongside it; use named imports for what the ESM entry exports.
2. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 3.1.2 (Feb 14, 2024)
- Module format: Dual (CommonJS + ESM)
- Last CommonJS version: 3.1.2
- Native ESM since: 3.0.0
- TypeScript types: bundled
- Node engines: >=6.0.0
- Weekly downloads: 166.3M
- License: MIT

## Runtime test results for @jridgewell/resolve-uri@3.1.2

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

| Runtime | require("@jridgewell/resolve-uri") | import "@jridgewell/resolve-uri" |
|---|---|---|
| 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 @jridgewell/resolve-uri

ES modules:

```js
import * as resolveUri from "@jridgewell/resolve-uri";
```

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS:

```js
const resolveUri = require("@jridgewell/resolve-uri");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (15 versions; the newest 15 shown).

| Versions | Format | First published |
|---|---|---|
| 3.0.0 – 3.1.2 | Dual (CommonJS + ESM) | Jan 22, 2022 |
| 0.1.0 – 2.0.0 | CommonJS | Jul 14, 2019 |

## Frequently asked

**Is @jridgewell/resolve-uri ESM-only?**

@jridgewell/resolve-uri@3.1.2 ships CommonJS and ESM builds. @jridgewell/resolve-uri publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("@jridgewell/resolve-uri") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.0.0. import "@jridgewell/resolve-uri" works alongside it.

**Can I require @jridgewell/resolve-uri?**

Yes. @jridgewell/resolve-uri ships a CommonJS entry alongside the native ESM entry. require("@jridgewell/resolve-uri") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.0.0.

**Does @jridgewell/resolve-uri work in Bun?**

Yes. import "@jridgewell/resolve-uri" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does @jridgewell/resolve-uri ship TypeScript types?**

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

## Links

- [@jridgewell/resolve-uri on npm](https://www.npmjs.com/package/@jridgewell/resolve-uri)
- [Source repository](https://github.com/jridgewell/resolve-uri)
- [HTML version](https://canirequire.com/package/@jridgewell/resolve-uri/)
- [JSON version](https://canirequire.com/package/@jridgewell/resolve-uri.json)

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