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

> ts-loader@9.6.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

TypeScript loader for webpack

Last verified Sep 9, 2026 against ts-loader@9.6.2.

ts-loader ships CommonJS only. require("ts-loader") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "ts-loader" 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("ts-loader") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0.
2. From ES modules use the default import: import tsLoader from "ts-loader"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 9.6.2 (Jun 22, 2026)
- Module format: CommonJS
- Last CommonJS version: 9.6.2
- TypeScript types: bundled
- Node engines: >=12.0.0
- Weekly downloads: 11.8M
- License: MIT

## Runtime test results for ts-loader@9.6.2

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

| Runtime | require("ts-loader") | import "ts-loader" |
|---|---|---|
| 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 ts-loader

ES modules:

```js
import tsLoader from "ts-loader";
```

CommonJS:

```js
const tsLoader = require("ts-loader");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (169 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 7.0.0 – 9.6.2 | CommonJS | Apr 15, 2020 |

## Frequently asked

**Is ts-loader ESM-only?**

ts-loader@9.6.2 is a CommonJS package. ts-loader ships CommonJS only. require("ts-loader") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=12.0.0. import "ts-loader" 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 ts-loader with ES module syntax?**

Yes. import tsLoader from "ts-loader" 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 ts-loader work in Bun?**

Yes. import "ts-loader" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does ts-loader ship TypeScript types?**

Yes. ts-loader bundles its own type declarations; no @types package is needed.

## Links

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

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