"Create animated GIF images from videos or photos"
Microsoft GIF Animator is a free program with which you can create GIF animations from your own photos or videos.
It is very simple to use, first optimize the size of images, you can also change the framing of the image by trimming it to fit better in your animation. If you want to do it from a video is much simpler as it will convert each frame into one of the frames of the animation
Its operation is almost automatic, you will have little more to do than tell it which video or set of images you want to convert to GIF.