Cheapcore or Casiotone is the name given to music made with home keyboards and consumer electronic instruments as opposed to professional synthesizers. Typically, Cheapcore is minimally produced, and often recorded on inexpensive equipment, such as answering machines or boombox. Technically a subgenre of electronica, Casiocore music often blends genres and stylistic elements together. Its name is a reference to the Casiotone brand of home keyboards, manufactured by Casio, although artists do not necessarily confine themselves to Casio instruments.

Casiocore can be viewed as an application of kitsch aesthetics to electronic music. It has its roots in outsider artists such as Daniel Johnston, who utilised consumer electronic instruments such as chord organs in his music. Wesley Willis also used consumer keyboards extensively in his music. Recent high-profile artists, such as Hot Chip, Trio, and The Human League, have used Casio keyboards in their music; however, they cannot be considered Casiocore music, since they do not exclusively use consumer keyboards.

One of the most prominent Cheapcore artists is Casiotone for the Painfully Alone.