Android (f/w 2.1+) on screen keyboard for multiple languages
Android Chinese keyboard: Stroke Input Method
Screen keyboards in MS Excel and in Java for typing Tibetan characters
Flow is an on-screen keyboard for Android devices.
Learn touch typing without leaving the terminal
Android Keyboard transforms simple letters into special characters
Android keyboard with a swipe input system, now with emoji support
Android keyboard for secure E2EE communication
Android smartphone app to suppress the default keyboard
Hacker's Keyboard Termux Mod
Codeboard App
Implementation of a re-usable custom onscreen keyboard
Round hiragana keyboard for Android.
A simple tool for typing characters in different writing systems.
An advance Emoticons & GIF keyboard
Khmer Unicode Keyboard Layout for External/Physical Keyboard
translate keystrokes typed with the wrong keyboard layout
A keyboard layout that's worth learning.
DIY ergonomic keyboard based on the Neo2 keyboard layout.
Alphabetical Keyboard
UK international/unicode keyboard driver for Windows
Tengwar Writer provides keyboard layouts to write directly in Tengwar