Click-N-Type!

Free Virtual Keyboard is a free, lightweight, multilingual and finger friendly virtual keyboard.

Uosk is a light tool that opens any ASCII, ANSI, UTF-8 and UTF-16 text file and converts words (e.g. separated by spaces) into buttons. Clicking one button the text snippet is pasted into any text editor (Notepad, WordPad, MS Office, OpenOffice...). You can edit snippets directly in Uosk, and save them as a new txt file. The snippet can also be copied to clipboard.It's basically a virtual keyboard with ability to set any amount of characters in one button.

On-Screen Keyboard is a utility that displays a virtual keyboard on the screen and allows users with mobility impairments to type data using a pointing device or joystick.

An ideal utility to be used to enter sensitive passwords. To avoid key loggers you can enter the password using only the mouse. This method protects you even against hardware keyloggers, or other keyloggers not supported by MyPlanetSoft Anti Keylogger. When the program is started, MOK deactivates all system-wide clipboard viewers, so you can safely copy passwords around different applications. Fully customizable keyboard. No installation required. Only ~70KB. For Microsoft Windows.

Neo's SafeKeys is an anti-keylogging virtual keyboard designed to counter keylogging, mouse-logging, clipboard-logging and screen-logging.

Kvkbd is a virtual keyboard for KDE, it contains many feature like system tray and dock support, autodetection and on the fly change of the keyboard layout, scripting with DBus, etc.

Florence is an extensible scalable virtual keyboard for GNOME. You need it if you can't use a real hardware keyboard, for example because you are disabled, your keyboard is broken or because you use a tablet PC, but you must be able to use a pointing device (as a mouse, a trackball, a touchscreen or opengazer); If you can't use a pointing device, there is gok, which can be used with just simple switches.

KeyStrokes™ is an award-winning, fully-functional, advanced on-screen keyboard providing people with physical impairments as well as graphic tablet and touch screen users full access to the computer.