Whisker menu - A menu that provides access to favorites, recently used, and searching installed applications.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
GnoMenu - A consolidated menu for gnome that brings eye candy to the world of the Gnome menus.
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.
Streamlit - Turn python scripts into beautiful ML tools
Listary - Listary is a revolutionary search utility for Windows