After a few years I still use Listary as my main search/launcher. It's very quick, has a very nice look and great system of filters and projects. There are problem with new version to be released, but I'm talking about version number 5.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Qubes OS - Qubes is a security-oriented, free and open-source operating system for personal computers that allows you to securely compartmentalize your digital life.Download Mirrors · Qubes R4.
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.
Tails - Tails is a Debian based live CD/USB with the goal of providing complete Internet anonymity for the...
Wox - An effective launcher for windows. A full-featured launcher, access programs and web contents as you type. Be more productive ever since. Wox is free for use and open-sourced at Github, Try it now! Download .
Whonix - Whonix aims at preserving your privacy and anonymity by helping you use your applications...