CollageIt is a free application which is designed to help users create a collage out of multiple images. This is a cross application platform which works with Windows and MAC OS. It has simple user interface and it creates photo collages in automatic mode. Three steps are enough to make beautiful collages. You need to add a photo, set the options and generate the collage preview. Finally, you need to save the collage image format BMP, JPEG, PNG,TGA, GIF and others.