UnFREEz is a freeware application that allows you to merge GIF images. It can read a GIF file that has different frame dimensions, but it does not alter the file's order or the file's palette. The program's simple interface is easy to navigate, and the app will display information about the file's size and frame delay in centiseconds. It also supports a number of settings that let you tweak the effects of the software to your liking.
The best thing about UnFREEz is that it is completely free. There are no hidden costs, and it can be used with any web browser. This application does not require you to purchase any other software. You can create your animated GIFs using the program's built-in tools. Just click on the "Get UnFREEz" button on the tool's front page to download the latest version of the software. After downloading the latest version of the program, you can start creating your animated GIFs.
UnFREEz is freeware, and should not require installation. You'll need to install an unzipping program to run it. The program does not contain any extra files. It's easy to use and should not require any extra files. If you're using a Mac, you may want to check out the freeware GifBuilder. Once you download the program, you can choose whether or not to use it.