GIFeq is a small utility that allows you to optimize your GIF files, and reduce the size of them by removing comments and interlacing, optimizing palettes and more. The program can process a single file or entire directory of GIFs, and shows you to the percentage of (byte) savings for each file. The optimized files can be saved to a new folder, so your original images remain unchanged. GIFeq supports static and animated GIF files.
The license of this software is Freeware, you can free download and free use this image optimizer software.