Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Snagit - Screen Capture Software for Windows and Mac
SingleFile - Save a complete page into a single HTML file
LightShot - The fastest way to take a customizable screenshot.
Screengrab - Screengrab is a Firefox extension that makes it easy to save a web-page as an image.