Window: resizeTo() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The Window.resizeTo() method dynamically resizes the window.

Syntax

js
resizeTo(width, height)

Parameters

width

An integer representing the new outerWidth in pixels (including scroll bars, title bars, etc.).

height

An integer value representing the new outerHeight in pixels (including scroll bars, title bars, etc.).

Return value

None (undefined).

Examples

This function resizes the window so that it takes up one quarter of the available screen. See the Screen.availWidth and Screen.availHeight properties.

js
function quarter() {
  window.resizeTo(window.screen.availWidth / 2, window.screen.availHeight / 2);
}

Specifications

Specification
CSSOM View Module
# dom-window-resizeto

Browser compatibility

BCD tables only load in the browser

Note: It's not possible to resize a window or tab that wasn't created by window.open(). It's also not possible to resize when the window has multiple tabs.

Note: This function might not resize the window synchronously. In some environments (like mobile) it might not resize the window at all. You can listen to the resize event to see if/when the window got resized.

See also