Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
AutoHotkey - The ultimate automation scripting language for Windows.
Screenster - 10x faster UI testing without a line of code.
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
httest - The httest provides a large variety of HTTP-related functionality, useful for implementing all...
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.