Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Edit - Edit any website, no code required
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
BigBlueButton - Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.
LightShot - The fastest way to take a customizable screenshot.