i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
awesome - A dynamic window manager for the X Window System developed in the C and Lua programming languages.
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.
Listary - Listary is a revolutionary search utility for Windows