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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 AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown

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 Window.open().
  2. You can't move a window or tab when it’s in a window with more than one tab.

See also

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