CoolTerm is a simple serial-port terminal application (no terminal emulation) that is geared towards hobbyists and professionals with a need to exchange data with hardware connected to serial ports such as servo controllers, robotic kits, GPS receivers, microcontrollers, etc.

Features include display of received data in text or hexadecimal format, support for multiple concurrent connection (if multiple serial ports are available), the ability to send data in text or hexadecimal format, local echo, hardware (CTS, DTR) and software flow control (XON), logging of received data to text files, and more. Written in Xojo.