# @firebase/util

> _NOTE: This is specifically tailored for Firebase JS SDK usage, if you are not a member of the Firebase team, please avoid using this package_

Latest version **1.15.3** (published 2026-08-19) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @firebase/util
pnpm add @firebase/util
yarn add @firebase/util
bun add @firebase/util
```

## Health

**Score 70/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 1.15.3 |
| Published | 2026-08-19 |
| First published | 2017-10-11 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >=20.0.0 |
| Dependencies | 1 |
| Unpacked size | 1.3 MB |
| Known vulnerabilities | 0 |
| Install scripts | yes |
| GitHub stars | 5141 |
| Author | Firebase |
| Maintainers | firebase-ops, feiyang.chen, google-wombot, chholland |

## Links

- npm: https://www.npmjs.com/package/@firebase/util
- Repository: https://github.com/firebase/firebase-js-sdk
- Homepage: https://github.com/firebase/firebase-js-sdk#readme
- Issues: https://github.com/firebase/firebase-js-sdk/issues
- npm.io page: https://npm.io/package/@firebase/util

## Dependencies (1)

- [tslib](https://npm.io/package/tslib.md) ^2.1.0

## Recent versions

- 1.15.3 (latest) — 2026-08-19
- 1.15.2-eap-crashlytics.e21972d2a (eap-crashlytics) — 2026-09-11
- 1.15.3-20260818172054 (next) — 2026-08-18
- 1.15.0-canary.bfb9accdc (canary) — 2026-04-01
- 1.13.0-caching-fdc.9f17eac6e (caching-fdc) — 2025-12-16
- 1.13.0-eap-firestore-pipelines.2.e4cdd2e06 (eap-firestore-pipelines) — 2025-11-06
- 1.13.0-firebase-studio-sdk-integration.556d1bed2 (firebase-studio-sdk-integration) — 2025-08-13
- 1.11.1-eap-ai-hybridinference.58d92df33 (eap-ai-hybridinference) — 2025-05-28
- 1.11.0-eap-vertexai-hybgoog.31261ca31 (eap-vertexai-hybgoog) — 2025-04-29
- 1.11.0-auth-redirect-credentials.b424e5897 (auth-redirect-credentials) — 2025-04-25
- 1.11.0-ssl-check.4f23f3343 (ssl-check) — 2025-04-23
- 1.11.0-eap-vertexai-hybridinference.e83974308 (eap-vertexai-hybridinference) — 2025-04-23
- 1.10.0-vertexai-preview.6b035b7d3 (vertexai-preview) — 2024-09-27
- 1.9.7-dataconnect-preview.d986d4bf2 (dataconnect-preview) — 2024-07-31
- 1.9.6-eap-firestore-backfiller.87babf60c (eap-firestore-backfiller) — 2024-06-25
- … 3554 more at https://npm.io/package/@firebase/util/versions

## README

# @firebase/util

_NOTE: This is specifically tailored for Firebase JS SDK usage, if you are not a
member of the Firebase team, please avoid using this package_

This is a wrapper of some Webchannel Features for the Firebase JS SDK.

## Usage

**ES Modules**

```javascript
import { Deferred } from '@firebase/util';

// Do stuff with Deferred or any of the other Utils you import
```

**CommonJS Modules**

```javascript
const utils = require('@firebase/util');

// Do stuff with any of the re-exported `utils`
```

---
_Source: https://npm.io/package/@firebase/util · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._