The moveBy() method of the Window interface moves the current window by a specified amount.

Note: This function moves the window relative to its current location. In contrast, window.moveTo() moves the window to an absolute location.


window.moveBy(deltaX, deltaY) 


  • deltaX is the amount of pixels to move the window horizontally. Positive values are to the right, while negative values are to the left.
  • deltaY is the amount of pixels to move the window vertically. Positive values are down, while negative values are up.


This example moves the window 10 pixels to the right and 10 pixels up.

function budge() {
  moveBy(10, -10);


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
moveByChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 4Opera Full support ≤12.1Safari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support ≤12.1Safari iOS Full support 1Samsung Internet Android Full support 1.0


Full support  
Full support

As of Firefox 7, websites can no longer move a browser window in the following cases:

  1. You can't move a window or tab that wasn’t created by
  2. You can't move a window or tab when it’s in a window with more than one tab.

See also