# Is object-keys ESM-only? Can you require() it?

> object-keys@1.1.1 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

Last verified Sep 9, 2026 against object-keys@1.1.1.

object-keys ships CommonJS only. require("object-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "object-keys" 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("object-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4.
2. From ES modules use the default import: import objectKeys from "object-keys"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/object-keys

## Facts

- Latest: 1.1.1 (Apr 7, 2019)
- Module format: CommonJS
- Last CommonJS version: 1.1.1
- TypeScript types: @types/object-keys
- Node engines: >= 0.4
- Weekly downloads: 91.8M
- License: MIT

## Runtime test results for object-keys@1.1.1

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

| Runtime | require("object-keys") | import "object-keys" |
|---|---|---|
| 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 object-keys

ES modules:

```js
import objectKeys from "object-keys";
```

CommonJS:

```js
const objectKeys = require("object-keys");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (32 versions; the newest 32 shown).

| Versions | Format | First published |
|---|---|---|
| 0.0.1 – 1.1.1 | CommonJS | Mar 29, 2013 |

## Frequently asked

**Is object-keys ESM-only?**

object-keys@1.1.1 is a CommonJS package. object-keys ships CommonJS only. require("object-keys") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.4. import "object-keys" 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 object-keys with ES module syntax?**

Yes. import objectKeys from "object-keys" 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 object-keys work in Bun?**

Yes. import "object-keys" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does object-keys ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/object-keys".

## Links

- [object-keys on npm](https://www.npmjs.com/package/object-keys)
- [Source repository](https://github.com/ljharb/object-keys)
- [HTML version](https://canirequire.com/package/object-keys/)
- [JSON version](https://canirequire.com/package/object-keys.json)

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