# Firebase JavaScript SDK Reference For Node.js
The Firebase JavaScript SDK implements the client-side libraries used by
applications using Firebase services. This SDK is distributed via:

- [CDN](/docs/web/setup/#add-sdks-initialize)
- [npm package](https://www.npmjs.com/package/firebase)
- [Bower package](https://github.com/firebase/firebase-bower)

To get started using Firebase, see
[Add Firebase to your JavaScript Project](https://firebase.google.com/docs/web/setup).

For source code, see the [Firebase JavaScript SDK Github repo](https://github.com/firebase/firebase-js-sdk).
