# @dfinity/principal

> Still using `@dfinity/principal`? Migrate to [`@icp-sdk/core`](https://js.icp.build/core/latest/upgrading/v4)!

JavaScript and TypeScript library to work with Internet Computer Principals

Do you want to know more about developing on the Internet Computer? Visit the [Developer Docs](https://internetcomputer.org/docs/home).

Additional API Documentation can be found [here](https://js.icp.build/core/v3.2/libs/principal/api).

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## Installation

Using Principal:

```shell
npm i --save @dfinity/principal
```

### In the browser:

```ts
import { Principal } from '@dfinity/principal';
```