# Bun Convert a Uint8Array to a Buffer

> Convert a Uint8Array to a Buffer

- Skill: `jarle/bun-convert-a-uint8array-to-a-buffer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add jarle/bun-convert-a-uint8array-to-a-buffer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/jarle/bun-convert-a-uint8array-to-a-buffer/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: jarle (https://skillmd.com/u/jarle)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/jarle/bun-convert-a-uint8array-to-a-buffer

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# Convert a Uint8Array to a Buffer

The [`Buffer`](https://nodejs.org/api/buffer.html) class extends [`Uint8Array`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array) with a number of additional methods. Use `Buffer.from()` to create a `Buffer` instance from a `Uint8Array`.

```ts  theme={"theme":{"light":"github-light","dark":"dracula"}}
const arr: Uint8Array = ...
const buf = Buffer.from(arr);
```

***

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