---
title: Convert a Blob to an ArrayBuffer
sidebarTitle: "Blob to ArrayBuffer"
mode: center
---

The [`Blob`](https://developer.mozilla.org/en-US/docs/Web/API/Blob) class provides a number of methods for consuming its contents in different formats, including `.arrayBuffer()`.

```ts
const blob = new Blob(["hello world"]);
const buf = await blob.arrayBuffer();
```

---

See [Docs > API > Binary Data](/docs/runtime/binary-data#conversion) for complete documentation on manipulating binary data with Bun.
