StreamsBaseline · Widely available

The streams API creates, composes, and consumes continuously generated data.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jun 28, 2022. Widely available since Dec 28, 2024.

How to use ↓Compare browsers

Browser support

DesktopChrome

1–66Not supported

67+Supportedsince May 29, 2018

Current: 155

Edge

12–18Not supported

79+Supportedsince Jan 15, 2020

Current: 154

Firefox

1–101Not supported

102+Supportedsince Jun 28, 2022

Current: 157

Safari

1–14Not supported

14.1+Supportedsince Apr 26, 2021

Current: 27

MobileChrome Android

18–66Not supported

67+Supportedsince May 31, 2018

Current: 155

Firefox Android

4–101Not supported

102+Supportedsince Jun 28, 2022

Current: 157

Safari iOS

1–14Not supported

14.5+Supportedsince Apr 26, 2021

Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: ByteLengthQueuingStrategy.

Feature detection

JS · check before using

if ("ReadableStream" in globalThis) {
  // ReadableStream is available
} else {
  // load a polyfill or use a fallback
}

Documentation (MDN)

Specification

streams.spec.whatwg.org ↗

Sub-features

Support for each part of the feature (55). The overall table above shows when the whole feature works.

Sub-feature	Chrome	Edge	Firefox	Safari	Chrome Android	Firefox Android	Safari iOS
ByteLengthQueuingStrategy	52	16	65	10.1	52	65	10.3
ByteLengthQueuingStrategy.ByteLengthQueuingStrategy	52	16	65	10.1	52	65	10.3
ByteLengthQueuingStrategy.highWaterMark	52	16	65	10.1	52	65	10.3
ByteLengthQueuingStrategy.size	52	16	65	10.1	52	65	10.3
CountQueuingStrategy	52	16	65	10.1	52	65	10.3
CountQueuingStrategy.CountQueuingStrategy	52	16	65	10.1	52	65	10.3
CountQueuingStrategy.highWaterMark	52	16	65	10.1	52	65	10.3
CountQueuingStrategy.size	52	16	65	10.1	52	65	10.3
ReadableStream	43	14	65	10.1	43	65	10.3
ReadableStream.ReadableStream	52	79	65	10.1	52	65	10.3
ReadableStream.cancel	43	14	65	10.1	43	65	10.3
ReadableStream.getReader	43	14	65	10.1	43	65	10.3
ReadableStream.locked	52	14	65	10.1	52	65	10.3
ReadableStream.pipeThrough	59	79	102	10.1	59	102	10.3
ReadableStream.pipeTo	59	79	100	10.1	59	100	10.3
ReadableStream.tee	52	79	65	10.1	52	65	10.3
ReadableStreamDefaultController	52	79	65	10	52	65	10
ReadableStreamDefaultController.close	52	79	65	10	52	65	10
ReadableStreamDefaultController.desiredSize	52	79	65	10	52	65	10
ReadableStreamDefaultController.enqueue	52	79	65	10	52	65	10

Show 35 more

Sub-feature	Chrome	Edge	Firefox	Safari	Chrome Android	Firefox Android	Safari iOS
ReadableStreamDefaultController.error	52	79	65	10	52	65	10
ReadableStreamDefaultReader	43	79	65	10	43	65	10
ReadableStreamDefaultReader.ReadableStreamDefaultReader	78	79	100	10	78	100	10
ReadableStreamDefaultReader.cancel	43	79	65	10	43	65	10
ReadableStreamDefaultReader.closed	43	79	65	10	43	65	10
ReadableStreamDefaultReader.read	43	79	65	10	43	65	10
ReadableStreamDefaultReader.releaseLock	43	79	65	10	43	65	10
ReadableStreamDefaultReader.releaseLock.reject_pending_read_request	105	105	102	17	105	102	17
TransformStream	67	79	102	14.1	67	102	14.5
TransformStream.TransformStream	67	79	102	14.1	67	102	14.5
TransformStream.readable	67	79	102	14.1	67	102	14.5
TransformStream.writable	67	79	102	14.1	67	102	14.5
TransformStreamDefaultController	67	79	102	14.1	67	102	14.5
TransformStreamDefaultController.desiredSize	67	79	102	14.1	67	102	14.5
TransformStreamDefaultController.enqueue	67	79	102	14.1	67	102	14.5
TransformStreamDefaultController.error	67	79	102	14.1	67	102	14.5
TransformStreamDefaultController.terminate	67	79	102	14.1	67	102	14.5
WritableStream	59	16	100	14.1	59	100	14.5
WritableStream.WritableStream	59	16	100	14.1	59	100	14.5
WritableStream.abort	59	16	100	14.1	59	100	14.5
WritableStream.close	81	81	100	14.1	81	100	14.5
WritableStream.getWriter	59	16	100	14.1	59	100	14.5
WritableStream.locked	59	16	100	14.1	59	100	14.5
WritableStreamDefaultController	59	16	100	14.1	59	100	14.5
WritableStreamDefaultController.error	59	16	100	14.1	59	100	14.5
WritableStreamDefaultController.signal	98	98	100	16.4	98	100	16.4
WritableStreamDefaultWriter	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.WritableStreamDefaultWriter	78	79	100	14.1	78	100	14.5
WritableStreamDefaultWriter.abort	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.close	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.closed	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.desiredSize	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.ready	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.releaseLock	59	16	100	14.1	59	100	14.5
WritableStreamDefaultWriter.write	59	16	100	14.1	59	100	14.5