HexD is an Internet microgenre of electronic music and style of audio mixing that emerged in the late 2010s to early 2020s. The term "hexD" was originally coined by the music collective Hexcastcrew. The style is defined by a form of DJ mixing which uses heavy bitcrushing, sped-up and pitched-up effects to create a distorted "glitched-out" sound, which is commonly referred to as "hexxing" a song. The mixing style is primarily applied to trance and cloud rap genres along with other styles.