# Is rollup-plugin-typescript ESM-only? Can you require() it?

> rollup-plugin-typescript@1.0.1 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Seamless integration between Rollup and TypeScript.

Last verified Sep 9, 2026 against rollup-plugin-typescript@1.0.1.

rollup-plugin-typescript ships CommonJS only. require("rollup-plugin-typescript") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "rollup-plugin-typescript" 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.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

**Deprecated:** This package has been deprecated and is no longer maintained. Please use @rollup/plugin-typescript.

## What to do

1. require("rollup-plugin-typescript") 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 rollupPluginTypescript from "rollup-plugin-typescript"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: no types are available for rollup-plugin-typescript; declare the module yourself if you need them.
4. This package is deprecated: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-typescript.

## Facts

- Latest: 1.0.1 (Mar 24, 2019)
- Module format: CommonJS
- Last CommonJS version: 1.0.1
- TypeScript types: none
- Node engines: not declared
- Weekly downloads: 211K
- License: MIT

## Runtime test results for rollup-plugin-typescript@1.0.1

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

| Runtime | require("rollup-plugin-typescript") | import "rollup-plugin-typescript" |
|---|---|---|
| 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 rollup-plugin-typescript

ES modules:

```js
import rollupPluginTypescript from "rollup-plugin-typescript";
```

CommonJS:

```js
const rollupPluginTypescript = require("rollup-plugin-typescript");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (20 versions; the newest 20 shown).

| Versions | Format | First published |
|---|---|---|
| 0.1.0 – 1.0.1 | CommonJS | Nov 10, 2015 |

## Frequently asked

**Is rollup-plugin-typescript ESM-only?**

rollup-plugin-typescript@1.0.1 is a CommonJS package. rollup-plugin-typescript ships CommonJS only. require("rollup-plugin-typescript") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "rollup-plugin-typescript" 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 rollup-plugin-typescript with ES module syntax?**

Yes. import rollupPluginTypescript from "rollup-plugin-typescript" 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 rollup-plugin-typescript work in Bun?**

Yes. import "rollup-plugin-typescript" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does rollup-plugin-typescript ship TypeScript types?**

No. rollup-plugin-typescript ships no type declarations and there is no @types package for it.

## Links

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

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