# Is util-deprecate ESM-only? Can you require() it?

> util-deprecate@1.0.2 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

The Node.js `util.deprecate()` function with browser support

Last verified Sep 9, 2026 against util-deprecate@1.0.2.

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

## Facts

- Latest: 1.0.2 (Oct 7, 2015)
- Module format: CommonJS
- Last CommonJS version: 1.0.2
- TypeScript types: @types/util-deprecate
- Node engines: not declared
- Weekly downloads: 132.5M
- License: MIT

## Runtime test results for util-deprecate@1.0.2

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

| Runtime | require("util-deprecate") | import "util-deprecate" |
|---|---|---|
| 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 util-deprecate

ES modules:

```js
import utilDeprecate from "util-deprecate";
```

CommonJS:

```js
const utilDeprecate = require("util-deprecate");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (3 versions; the newest 3 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 1.0.2 | CommonJS | Apr 30, 2014 |

## Frequently asked

**Is util-deprecate ESM-only?**

util-deprecate@1.0.2 is a CommonJS package. util-deprecate ships CommonJS only. require("util-deprecate") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "util-deprecate" 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 util-deprecate with ES module syntax?**

Yes. import utilDeprecate from "util-deprecate" 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 util-deprecate work in Bun?**

Yes. import "util-deprecate" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does util-deprecate ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/util-deprecate".

## Links

- [util-deprecate on npm](https://www.npmjs.com/package/util-deprecate)
- [Source repository](https://github.com/TooTallNate/util-deprecate)
- [HTML version](https://canirequire.com/package/util-deprecate/)
- [JSON version](https://canirequire.com/package/util-deprecate.json)

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