Beneton Movie GIF is a free animated GIF editing tool. It is simple, quick, and effective.

Beneton Movie GIF Features
Supports 48 file formats such as BMP, GIF, JPG, PNG, and AVI
Multiple frames selecting
Drag and drop frames for a quick editing
20 different effects, divided in 2 big categories: normal and animated
Supports individual frame properties: delay and transparent for each frame
Save and load a batch of frames (frame1.bmp, frame2.bmp, etc.)
A complete built-in image editor with many tools (pencil, shapes, airbrush, alpha brush, fill, selection, text)
A simple preview window that previews individual frames or the animation with options such as zoom, loop, etc.