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.
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.
recordit.co - Make a short video capture of your desktop as a gif.
LightShot - The fastest way to take a customizable screenshot.
Honeycam - Make wonderful Animated GIFs by using Honeycam, very easy GIF image-making and editing software!