ReadableStream.from()Limited availability
The ReadableStream.from() static method converts an iterable or async iterable object, such as an array or async generator function, into a readable stream.
Not yet supported in all major browsers — check the table and provide a fallback.
Browser support
DesktopChrome
✕Not supportedup to 155
Current: 155Edge
✕Not supportedup to 154
Current: 154Firefox
1–116Not supported
117+Supportedsince Aug 29, 2023
Current: 157Safari
1–26.6Not supported
27+Supportedsince Sep 14, 2026
Current: 27MobileChrome Android
✕Not supportedup to 155
Current: 155Firefox Android
4–116Not supported
117+Supportedsince Aug 29, 2023
Current: 157Safari iOS
1–26.6Not supported
27+Supportedsince Sep 14, 2026
Current: 27How to use
Not supported in Chrome, Edge, Chrome Android. Use feature detection below and provide a fallback (or a polyfill) for those browsers.
Example
Full syntax and examples are on MDN: from static.
Feature detection
JS · check before using
if ("ReadableStream" in globalThis && "from" in ReadableStream) {
// ReadableStream.from is available
}