Web/API/Blob/stream

The Blob interface's stream() method returns a ReadableStream which upon reading returns the data contained within the Blob.

Syntax

var stream = blob.stream();

Parameters

None.

Returns

A ReadableStream which, upon reading, returns the contents of the Blob.

Usage notes

With stream() and the returned ReadableStream, you gain several interesting capabilities:

• Call getReader() on the returned stream to get an object to use to read the data from the blob using methods such as the ReadableStreamDefaultReader interface's read() method.
• Call the returned stream's pipeTo() method to pipe the blob's data to a writable stream.
• Call the returned stream's tee() method to tee the readable stream. This returns an array containing two new ReadableStream objects, each of which returns the contents of the Blob.
• Call the returned stream's pipeThrough() method to pipe the stream through a TransformStream or any other readable and writable pair.

Specifications

Specification	Status	Comment
File APIThe definition of 'Blob.stream()' in that specification.	Working Draft

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
stream()	Chrome Full support 76	Edge Full support 79	Firefox Full support 69	IE No support No	Opera No support No	Safari No support No	WebView Android Full support 76	Chrome Android Full support 76	Firefox Android No support No	Opera Android Full support 54	Safari iOS No support No	Samsung Internet Android Full support 12.0

Legend

Full support  

Full support

No support  

No support

See also

• Body.body
• Streams API

Blob.stream() by Mozilla Contributors is licensed under CC-BY-SA 2.5.