Trouts GIF Optimizer
Trout's GIF Optimizer shrinks GIFs without any noticable reduction of picture quality. It helps creating even smaller GIFs. Cut, copy and paste graphics to or from the Windows clipboard. Trouts GIF Optimizer supports color reduction to create much smaller GIFs. As addition, you can sort graphics in batch optimizations by name, size, bytes saved etc. A preview helps to compare the original graphics with the optimized GIFs. Last but not least, recursively search for graphics through folders and their subfolders can also be done with Trout's GIF Optimizer.