CHIRP is a free, open-source tool for programming your amateur radio. It supports a large number of manufacturers and models, as well as provides a way to interface with multiple data sources and formats.

CHIRP can handle data in the following formats: - Comma Separated Values (.csv) - Comma Separated Values generated by RT Systems (.csv) - EVE for Yaesu VX-5 (.eve) - Kenwood HMK format (.hmk) - Kenwood commercial ITM format (.itm) - Icom Data Files (.icf) - ARRL TravelPlus (.tpe) - VX5 Commander Files (.vx5) - VX7 Commander Files (.vx7)

Most popular modern amateur radios are supported by CHIRP via their interface cables.