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.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.
Gnome Do - Simple, sleek, swift, smart. Do. GNOME Do allows you to quickly search for many items present on your desktop or the web, and perform useful actions on those items. GNOME Do is inspired by Quicksilver & GNOME Launch Box.