You can disable the watermark completely with a Pro account, Giif you really need to have watermark-free images. Upload Video mp4 is best. Endless possibilities. What media sources can I make gifs from. Free Pro Ability to remove "imgflip. Some of the popular supported video formats are Raw Is Gif, avi, mov, mp4, mpg, mpeg, wmv, 3gp, asf, swf, ogg, h, rm. Flip Vertically.