# Is eslint-plugin-markdown ESM-only? Can you require() it?

> eslint-plugin-markdown@5.1.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

An ESLint plugin to lint JavaScript in Markdown code fences.

Last verified Sep 9, 2026 against eslint-plugin-markdown@5.1.0.

eslint-plugin-markdown ships CommonJS only. require("eslint-plugin-markdown") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.18.0 || ^20.9.0 || >=21.1.0. import "eslint-plugin-markdown" 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.

**Deprecated:** Please use @eslint/markdown instead

## What to do

1. require("eslint-plugin-markdown") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.18.0 || ^20.9.0 || >=21.1.0.
2. From ES modules use the default import: import eslintPluginMarkdown from "eslint-plugin-markdown"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/eslint-plugin-markdown
4. This package is deprecated: Please use @eslint/markdown instead

## Facts

- Latest: 5.1.0 (Jul 11, 2024)
- Module format: CommonJS
- Last CommonJS version: 5.1.0
- TypeScript types: @types/eslint-plugin-markdown
- Node engines: ^18.18.0 || ^20.9.0 || >=21.1.0
- Weekly downloads: 605K
- License: MIT

## Runtime test results for eslint-plugin-markdown@5.1.0

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

| Runtime | require("eslint-plugin-markdown") | import "eslint-plugin-markdown" |
|---|---|---|
| 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 eslint-plugin-markdown

ES modules:

```js
import eslintPluginMarkdown from "eslint-plugin-markdown";
```

CommonJS:

```js
const eslintPluginMarkdown = require("eslint-plugin-markdown");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (13 versions; the newest 13 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 5.1.0 | CommonJS | Jan 2, 2019 |

## Frequently asked

**Is eslint-plugin-markdown ESM-only?**

eslint-plugin-markdown@5.1.0 is a CommonJS package. eslint-plugin-markdown ships CommonJS only. require("eslint-plugin-markdown") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^18.18.0 || ^20.9.0 || >=21.1.0. import "eslint-plugin-markdown" 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 eslint-plugin-markdown with ES module syntax?**

Yes. import eslintPluginMarkdown from "eslint-plugin-markdown" 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 eslint-plugin-markdown work in Bun?**

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

**Does eslint-plugin-markdown ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/eslint-plugin-markdown".

## Links

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

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