# Convert a Buffer to an ArrayBuffer (/docs/guides/binary/buffer-to-arraybuffer)

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Related: [Convert an ArrayBuffer to a string](/docs/guides/binary/arraybuffer-to-string.md), [Convert an ArrayBuffer to a Buffer](/docs/guides/binary/arraybuffer-to-buffer.md), [Convert an ArrayBuffer to a Blob](/docs/guides/binary/arraybuffer-to-blob.md), [Convert an ArrayBuffer to an array of numbers](/docs/guides/binary/arraybuffer-to-array.md), [Convert an ArrayBuffer to a Uint8Array](/docs/guides/binary/arraybuffer-to-typedarray.md), [Convert a Buffer to a string](/docs/guides/binary/buffer-to-string.md)

The Node.js [`Buffer`](https://nodejs.org/api/buffer.html) class views and manipulates data in an underlying `ArrayBuffer`. The `buffer` property returns that `ArrayBuffer`.

```ts
const nodeBuf = Buffer.alloc(64);
const arrBuf = nodeBuf.buffer;
```

***

See [Binary Data](/runtime/binary-data#conversion).