While some mouse jigglers can be detected, others are made to be invisible. It's crucial to remember that not all mouse jigglers are created equally, and the degree of detection can change based on the particular device you're using. In general, mouse jigglers that are made to be undetected won't leave a trace on your computer or affect the other apps you use. They function by subtly and undetectably moving your mouse, keeping your computer active, and preventing it from entering sleep mode. On the other side, mouse jigglers that can be detected might leave a trail or obstruct other programs on your computer. These particular mouse jigglers may be more appropriate in some circumstances, such as when you need to replicate mouse activity for testing. The level of detectability of any mouse jiggler you are contemplating should be determined by carefully reading the product description and reviews. Make sure to select a mouse jiggler specially made to be invisible if you're seeking one that won't be noticed.