rembrembdocs

Skip to main content

Bun home pagelight logodark logo

[Runtime

](../../../index.md)[Package Manager

](../../../pm/cli/install/index.md)[Bundler

](../../../bundler/index.md)[Test Runner

](../../../test/index.md)[Guides

](../../index.md)[Reference

](https://bun.com/reference)[Blog

](https://bun.com/blog)[Feedback

](../../../feedback/index.md)

Bun provides several convenience functions for reading the contents of a ReadableStream into different formats. This snippet reads the contents of a ReadableStream to an ArrayBuffer, then creates a Uint8Array that points to the buffer.

const stream = new ReadableStream();
const buf = await Bun.readableStreamToArrayBuffer(stream);
const uint8 = new Uint8Array(buf);

Additionally, there is a convenience method to convert to Uint8Array directly.

const stream = new ReadableStream();
const uint8 = await Bun.readableStreamToBytes(stream);

See Docs > API > Utils for documentation on Bun’s other ReadableStream conversion functions.

Was this page helpful?

Suggest editsRaise issue

[

Convert a ReadableStream to an ArrayBuffer

Previous

](../to-arraybuffer/index.md)[

Convert a ReadableStream to an array of chunks

Next

](../to-array/index.md)