RealTerm - RealTerm is a terminal program specially designed for capturing, controlling and debugging binary...
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.
GtkTerm - Gtkterm is a simple GTK+ terminal used to communicate with a serial port.
bilgge. - a privacy-paranoid free service for your notes and secrets
CuteCom - Features: easy to use GUI no cryptic keyboard shortcuts
Dclouds - Blockchain-based alternative to iCloud.