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.
Atomic Email Hunter - Atomic Email Hunter is an incredibly robust tool that specializes in extracting email addresses, along with usernames, from various webpages.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Cute Web Email Extractor - It is fast, secure and trusted web email extractor, email scraper, email grabber, and email spider for extracting email addresses from search engines, websites, local files.
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.
Web Contact Scraper - Web Contact Scraper is a fully automated software application for gathering targeted business contact information. You can search and gather thousands of business details matching a chosen profession within any location worldwide!
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 .