# Is karma-cli ESM-only? Can you require() it?

> karma-cli@2.0.0 has no importable main entry. No JavaScript entry point.

The Karma command line interface.

Last verified Sep 9, 2026 against karma-cli@2.0.0.

karma-cli does not expose a JavaScript entry point in package.json. It is likely a CLI, a stylesheet, a type-definition package, or an asset bundle, so require() and import are not the way to use it.

## What to do

1. Do not require() or import karma-cli: it has no JavaScript entry point. Use it as a CLI (npx karma-cli), a stylesheet, an asset, or a type-definition package as its README describes.
2. TypeScript: no types are available for karma-cli; declare the module yourself if you need them.

## Facts

- Latest: 2.0.0 (Dec 1, 2018)
- Module format: No JS entry point
- Last CommonJS version: n/a
- TypeScript types: none
- Node engines: >= 6
- Weekly downloads: 220K
- License: MIT

## Runtime test results for karma-cli@2.0.0

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

| Runtime | require("karma-cli") | import "karma-cli" |
|---|---|---|
| Node.js 18 | fails (MODULE_NOT_FOUND) | fails (ERR_MODULE_NOT_FOUND) |
| Node.js 20 | fails (MODULE_NOT_FOUND) | fails (ERR_MODULE_NOT_FOUND) |
| Node.js 22 | fails (MODULE_NOT_FOUND) | fails (ERR_MODULE_NOT_FOUND) |
| Node.js 24 | fails (MODULE_NOT_FOUND) | fails (ERR_MODULE_NOT_FOUND) |
| Node.js 26 | fails (MODULE_NOT_FOUND) | fails (ERR_MODULE_NOT_FOUND) |
| Bun 1.4.0 | fails (Error) | fails (Error) |

## How to import karma-cli

ES modules:

```js
import * as karmaCli from "karma-cli";
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (10 versions; the newest 10 shown).

| Versions | Format | First published |
|---|---|---|
| 0.0.1 – 2.0.0 | No JS entry point | Nov 16, 2013 |

## Frequently asked

**Is karma-cli ESM-only?**

karma-cli@2.0.0 has no importable main entry. karma-cli does not expose a JavaScript entry point in package.json. It is likely a CLI, a stylesheet, a type-definition package, or an asset bundle, so require() and import are not the way to use it.

**Does karma-cli work in Bun?**

Importing karma-cli failed in Bun 1.4.0 on Sep 9, 2026: error: Cannot find package 'karma-cli' from '/Users/boat/Projects/top-seo/data/probe-work/karma-cli/imp.mjs'

**Does karma-cli ship TypeScript types?**

No. karma-cli ships no type declarations and there is no @types package for it.

## Links

- [karma-cli on npm](https://www.npmjs.com/package/karma-cli)
- [Source repository](https://github.com/karma-runner/karma-cli)
- [HTML version](https://canirequire.com/package/karma-cli/)
- [JSON version](https://canirequire.com/package/karma-cli.json)

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