j4-dmenu-desktop - A replacement for i3-dmenu-desktop Its purpose is to find .desktop files and offer you a menu to start an application using dmenu.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Listary - Listary is a revolutionary search utility for Windows
Pixie - Pixie is a free, open source web application that will help you quickly create your own website. Many people refer to this type of software as a content management system (cms), we prefer to call it a small, simple, website maker.
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.
Albert - Omnilauncher for Linux to help you quickly find and run apps and do other useful things.