Window.scrollMaxY

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The Window.scrollMaxY read-only property returns the maximum number of pixels that the document can be scrolled vertically.

Syntax

yMax = window.scrollMaxY

yMax is the number of pixels.

Example

// Scroll to the bottom of the page
let maxY = window.scrollMaxY;

window.scrollTo(0, maxY);

Notes

Do not use this property to get the total document height, which is not equivalent to window.innerHeight + window.scrollMaxY, because window.innerHeight includes the width of any visible horizontal scrollbar, thus the result would exceed the total document height by the width of any visible horizontal scrollbar. Instead use document.body.scrollHeight. See also window.scrollMaxX and window.scrollTo.

Specification

This is not part of any specification.

Browser compatibility

	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
`scrollMaxY` Non-standard	Chrome No support No	Edge No support No	Firefox Full support Yes	IE ?	Opera ?	Safari ?	WebView Android No support No	Chrome Android No support No	Firefox Android Full support Yes	Opera Android ?	Safari iOS ?	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
Non-standard. Expect poor cross-browser support.: Non-standard. Expect poor cross-browser support.