Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
AutoHotkey - The ultimate automation scripting language for Windows.
Synapse - Synapse is a semantic launcher written in Vala that you can use to start applications as well as find and access relevant documents and files by making use of the Zeitgeist engine.
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
Listary - Listary is a revolutionary search utility for Windows
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.