The onmouseup property returns the onMouseUp event handler code on the current element.


element.onmouseup = event handling code


The mouseup event is raised when the user releases the mouse button.


Specification Status Comment
WHATWG HTML Living Standard
The definition of 'onmouseup' in that specification.
Living Standard  

Browser Compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) (Yes) ? ? ? ?
Feature Android Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) (Yes) (Yes) ? ? ? ? ?

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 Last updated by: erikadoyle,