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---
name: Convert an ArrayBuffer to a Buffer
---
The Node.js [`Buffer`](https://nodejs.org/api/buffer.html) API predates the introduction of `ArrayBuffer` into the JavaScript language. Bun implements both.
Use the static `Buffer.from()` method to create a `Buffer` from an `ArrayBuffer`.
```ts
const arrBuffer = new ArrayBuffer(64);
const nodeBuffer = Buffer.from(arrBuffer);
```
---
To create a `Buffer` that only views a portion of the underlying buffer, pass the offset and length to the constructor.
```ts
const arrBuffer = new ArrayBuffer(64);
const nodeBuffer = Buffer.from(arrBuffer, 0, 16); // view first 16 bytes
```
---
See [Docs > API > Binary Data](/docs/api/binary-data#conversion) for complete documentation on manipulating binary data with Bun.
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