Window: scrollBy() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2020.

The Window.scrollBy() method scrolls the document in the window by the given amount.

Syntax

js
scrollBy(xCoord, yCoord)
scrollBy(options)

Parameters

xCoord

The horizontal pixel value that you want to scroll by.

yCoord

The vertical pixel value that you want to scroll by.

options

An object containing the following properties:

top

Specifies the number of pixels along the Y axis to scroll the window or element.

left

Specifies the number of pixels along the X axis to scroll the window or element.

behavior

Specifies whether the scrolling should animate smoothly (smooth), happen instantly in a single jump (instant), or let the browser choose (auto, default).

Return value

None (undefined).

Examples

To scroll down one page:

js
window.scrollBy(0, window.innerHeight);

To scroll up:

js
window.scrollBy(0, -window.innerHeight);

Using options:

js
window.scrollBy({
  top: 100,
  left: 100,
  behavior: "smooth",
});

Notes

window.scrollBy() scrolls by a particular amount, whereas window.scroll() scrolls to an absolute position in the document. See also window.scrollByLines() and window.scrollByPages().

Specifications

Specification
CSSOM View Module
# dom-window-scrollby

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
scrollBy
options.behavior parameter
options.left parameter
options.top parameter

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
See implementation notes.