OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Nvidia ShadowPlay - ShadowPlay
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
ConnectWise Control - ConnectWise Control is a mobile app that allows you to instantly connect with another system from anywhere with a connection to the internet. The software not only comes in a mobile app, but it has a desktop version as well for complete coverage.
CamStudio - CamStudio is a screen capturing tool that records video from computer screen and save it to system’s storage with AVI extension, which is propped up by most frequent video players and editors.
Droplr - Droplr is a tiny application that aims at helping people share things easier.