Window.resizeTo()

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

Syntax

window.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).

Example

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

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

Specification

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'window.resizeTo()' in that specification.
Working Draft

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
resizeToChrome Full support 1Edge Full support 12Firefox Full support 1
Notes
Full support 1
Notes
Notes Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by window.open or contains more than one tab. See here for more details.
IE Full support 4Opera Full support ‚ȧ12.1Safari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support ‚ȧ12.1Safari iOS Full support 1Samsung Internet Android Full support 1.0

Legend

Full support  
Full support
See implementation notes.
See implementation notes.

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.

See also