A toothbrush sanitizer is a home oral hygiene device that uses ultraviolet (UV) light to kill bacteria and microorganisms on toothbrush heads after use. Since toothbrushes remain moist and can collect germs from the bathroom environment, this device helps keep them hygienic and safe for daily brushing. It is made of plastic outer casing, UV-C light lamp or LED, charging or battery unit, and internal holder for toothbrush heads.