Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Thum.io - A real-time website screenshot generator
Snagit - Screen Capture Software for Windows and Mac
Screenshot Tracker - Capture and keep track of full-sized web page screenshots
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Microlink screenshot - Take a screenshot of any website