ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
LICEcap - A straightforward, high performance application that enables users to capture a portion of the desktop and save it to . GIF or . LCF, LICEcap is available for download as a GPL free software.
FastStone Capture - A powerful, lightweight, yet full-featured screen capture tool that allows you to easily capture...
Snagit - Screen Capture Software for Windows and Mac
MWSnap - MWSnap is basically a free to use Windows snapping tools that are used for snapping any part of the screen that is currently displaying on the front of all opened programs and windows.