UnFREEz is an animated image creation tool that lets you create or combine different animated images to highly quick and effective result.
The way it works is simple. You just have to insert your static images in the text area and these will arrange themselves in a list, according to the sequence that you've specified. From there you can generate the animated image or modify other parameters such as the time interval from image to image or the option to set a loop.
If you want to create your own animated images, UnFREEz gives you one of the most straightforward ways to do it.