Mouse double click tester is the best free online mouse button testing tool to be certain that your mouse is double-clicking or not. Press the click me button to test mouse double clicks malfunction and why the mouse keeps double or extra clicking during repetitive button presses. What Is The Double Click Test? The double click test tool is designed and is used specifically to check your mouse buttons’ glitches in respect of extra or more clicks than many presses. In simple words, mouse double clicks are incorrect or false functions of PC and Laptop mice. Sometimes, you click the mouse button only once but your mouse click twice.