CuteCom

CuteCom is a graphical serial terminal aimed mainly at hardware developers or other people who need a terminal to talk to their devices.

Features:

easy to use GUI
no cryptic keyboard shortcuts
lineoriented interface instead of character-oriented
Ctrl+C, Ctrl+Q and Ctrl+S control sequences work
input history
a cute GUI 😉
xmodem, ymodem, zmodem support (requires the sz tools)
easy to differentiate between typed text and echoed text
select between read/write, read-only and write-only open mode
open the device without changing its settings
hexadecimal input and output
configurable line end characters (LF, CR, LFCR)
configurable delay between characters