GIF frame extractor (splitter)
You can also use: http://ezgif.com/split?url=http://link/to/image.gif
GIF and WebP 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 or remove some frames and restore animation, click "Edit animation" button. It will take you to the GIF maker window.