# Is get-caller-file ESM-only? Can you require() it?

> get-caller-file@2.0.5 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

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Last verified Sep 9, 2026 against get-caller-file@2.0.5.

get-caller-file ships CommonJS only. require("get-caller-file") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js 6.* || 8.* || >= 10.*. import "get-caller-file" 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("get-caller-file") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js 6.* || 8.* || >= 10.*.
2. From ES modules use the default import: import getCallerFile from "get-caller-file"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/get-caller-file

## Facts

- Latest: 2.0.5 (Mar 9, 2019)
- Module format: CommonJS
- Last CommonJS version: 2.0.5
- TypeScript types: @types/get-caller-file
- Node engines: 6.* || 8.* || >= 10.*
- Weekly downloads: 124.5M
- License: ISC

## Runtime test results for get-caller-file@2.0.5

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

| Runtime | require("get-caller-file") | import "get-caller-file" |
|---|---|---|
| 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 get-caller-file

ES modules:

```js
import getCallerFile from "get-caller-file";
```

CommonJS:

```js
const getCallerFile = require("get-caller-file");
```

## 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 |
|---|---|---|
| 1.0.0 – 2.0.5 | CommonJS | Dec 30, 2015 |

## Frequently asked

**Is get-caller-file ESM-only?**

get-caller-file@2.0.5 is a CommonJS package. get-caller-file ships CommonJS only. require("get-caller-file") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js 6.* || 8.* || >= 10.*. import "get-caller-file" 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 get-caller-file with ES module syntax?**

Yes. import getCallerFile from "get-caller-file" 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 get-caller-file work in Bun?**

Yes. import "get-caller-file" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does get-caller-file ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/get-caller-file".

## Links

- [get-caller-file on npm](https://www.npmjs.com/package/get-caller-file)
- [Source repository](https://github.com/stefanpenner/get-caller-file)
- [HTML version](https://canirequire.com/package/get-caller-file/)
- [JSON version](https://canirequire.com/package/get-caller-file.json)

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