# Is neo-async ESM-only? Can you require() it?

> neo-async@2.6.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Neo-Async is a drop-in replacement for Async, it almost fully covers its functionality and runs faster 

Last verified Sep 9, 2026 against neo-async@2.6.2.

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

## Facts

- Latest: 2.6.2 (Jul 9, 2020)
- Module format: CommonJS
- Last CommonJS version: 2.6.2
- TypeScript types: @types/neo-async
- Node engines: not declared
- Weekly downloads: 46.0M
- License: MIT

## Runtime test results for neo-async@2.6.2

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

| Runtime | require("neo-async") | import "neo-async" |
|---|---|---|
| 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 neo-async

ES modules:

```js
import neoAsync from "neo-async";
```

CommonJS:

```js
const neoAsync = require("neo-async");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (75 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 0.3.2 – 2.6.2 | CommonJS | Dec 23, 2014 |

## Frequently asked

**Is neo-async ESM-only?**

neo-async@2.6.2 is a CommonJS package. neo-async ships CommonJS only. require("neo-async") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "neo-async" 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 neo-async with ES module syntax?**

Yes. import neoAsync from "neo-async" 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 neo-async work in Bun?**

Yes. import "neo-async" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does neo-async ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/neo-async".

## Links

- [neo-async on npm](https://www.npmjs.com/package/neo-async)
- [Source repository](https://github.com/suguru03/neo-async)
- [HTML version](https://canirequire.com/package/neo-async/)
- [JSON version](https://canirequire.com/package/neo-async.json)

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