Kittie has been put under multiple genres of music, especially heavy metal genres. Kittie have been categorized as , gothic metal, punk, , extreme metal, thrash metal, hard rock, , and alternative metal. Kittie has often used death metal and black metal vocals in their songs and often had clean singing in those songs as well. On the "Spit" album, Kittie used screaming, clean singing and rapping. Kittie began as a band but then abandoned the nu metal style. Kittie have been compared to bands such as Pantera, Slayer and Mudvayne.