# Is fork-ts-checker-webpack-plugin ESM-only? Can you require() it?

> fork-ts-checker-webpack-plugin@9.1.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Runs typescript type checker and linter on separate process.

Last verified Sep 9, 2026 against fork-ts-checker-webpack-plugin@9.1.0.

fork-ts-checker-webpack-plugin ships CommonJS only. require("fork-ts-checker-webpack-plugin") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=14.21.3. import "fork-ts-checker-webpack-plugin" 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("fork-ts-checker-webpack-plugin") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=14.21.3.
2. From ES modules use the default import: import forkTsCheckerWebpackPlugin from "fork-ts-checker-webpack-plugin"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 9.1.0 (Apr 3, 2025)
- Module format: CommonJS
- Last CommonJS version: 9.1.0
- TypeScript types: bundled
- Node engines: >=14.21.3
- Weekly downloads: 19.2M
- License: MIT

## Runtime test results for fork-ts-checker-webpack-plugin@9.1.0

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

| Runtime | require("fork-ts-checker-webpack-plugin") | import "fork-ts-checker-webpack-plugin" |
|---|---|---|
| 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 fork-ts-checker-webpack-plugin

ES modules:

```js
import forkTsCheckerWebpackPlugin from "fork-ts-checker-webpack-plugin";
```

CommonJS:

```js
const forkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (159 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 6.0.4 – 9.1.0 | CommonJS | Nov 26, 2020 |

## Frequently asked

**Is fork-ts-checker-webpack-plugin ESM-only?**

fork-ts-checker-webpack-plugin@9.1.0 is a CommonJS package. fork-ts-checker-webpack-plugin ships CommonJS only. require("fork-ts-checker-webpack-plugin") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=14.21.3. import "fork-ts-checker-webpack-plugin" 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 fork-ts-checker-webpack-plugin with ES module syntax?**

Yes. import forkTsCheckerWebpackPlugin from "fork-ts-checker-webpack-plugin" 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 fork-ts-checker-webpack-plugin work in Bun?**

Yes. import "fork-ts-checker-webpack-plugin" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does fork-ts-checker-webpack-plugin ship TypeScript types?**

Yes. fork-ts-checker-webpack-plugin bundles its own type declarations; no @types package is needed.

## Links

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

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