Trouts GIF Optimizer shrinks GIFs and converts other graphics to optimized GIFs: Bitmaps (*.bmp), JPEGs (*.jpg; *jpeg), Icons (*.ico), Metafiles (*.wmf; *.emf).
Just drag-and-drop files then Save.
Trouts GIF Optimizer supports animated GIFs, has Windows clipboard support. You can also search for graphics optimize recursively through subfolders. Shows previews of optimized GIFs.
Trout's GIF Optimizer shrinks GIFs without any noticeable reduction of picture quality.
Trouts GIF Optimizer - simple and effective freeware that optimizes and reduces the size of GIF files and other graphic file types.