Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ActiveWords - Auto correct on steroids
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Zeplin - Collaboration app for UI designers & frontend developers
LightShot - The fastest way to take a customizable screenshot.