bun.sh/docs/guides/binary/arraybuffer-to-blob.md

name

name
Convert an ArrayBuffer to a Blob

A Blob can be constructed from an array of "chunks", where each chunk is a string, binary data structure, or another Blob.

const buf = new ArrayBuffer(64);
const blob = new Blob([buf]);

---

By default the type of the resulting Blob will be unset. This can be set manually.

const buf = new ArrayBuffer(64);
const blob = new Blob([buf], { type: "application/octet-stream" });
blob.type; // => "application/octet-stream"

---

See Docs > API > Binary Data for complete documentation on manipulating binary data with Bun.