Gif frame extractor (splitter)
You can also use: http://ezgif.com/split?url=http://link/to/image.gif
GIF frame splitter (extractor/decompiler)
This online tool is designed to convert an animated gif image into individual frames for editing or viewing them separately.
GIF explode tool, splitter, decompiler - call it whatever you want.
After decompressing the gif file, you can download specific frames (right click > save image as...) or all at once as a single zip file, by clicking "Download frames as ZIP."
If you want to rearrange frame order and restore animation, click "Edit animation" button.