RealTerm - RealTerm is a terminal program specially designed for capturing, controlling and debugging binary...
CuteCom - Features: easy to use GUI no cryptic keyboard shortcuts
GtkTerm - Gtkterm is a simple GTK+ terminal used to communicate with a serial port.
PuTTY - Popular free terminal application. Mostly used as an SSH client.
HTerm - HTerm is a terminal emulator for serial communication.
Cryptee - Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos and all sorts of other files.