GifInspector

GifInspector is an advanced tool with straightforward options to help you examine the technical details of GIF animations, as well as to extract all frames and save them as bitmaps.

Setup, prerequisites, and interface

Setting it doesn't take long, since there are no special options or third-party offers bundled. However, you must have .NET Framework installed, since it was built using this platform.
The interface of GifInspector is user-friendly, represented by a standard window split into two panes for viewing file information and previewing images.

Analyze GIF information and save frames to BMP files

After loading an animated GIF via the file browser, you can find out the application extensions, background color, number of frames, global color table (e.g. component status, consolidated state, size bits), header (e.g. signature, version), logical screen descriptor (e.g. background color index, color resolution) and other info, in addition to the property pages.
It's possible to toggle between categorized and alphabetical sorting mode, as well as edit some of these properties, such as the GIF frame collection. The frames can be previewed in the second tab and extracted to BMP image files by indicating the saving directory. Moreover, the utility can be asked to create a debugging XML file in case any issues occur.

Evaluation and conclusion

We haven't come across any problems in our tests, since it didn't freeze, crash or indicate errors. Unsurprisingly, it didn't put a strain on the computer's performance in our tests, since it needed low CPU and memory to work properly.
To conclude, GifInspector supplies you with a simple interface for analyzing GIF information and extracting frames to save as common BMP files. It's free and open source. However, it doesn't cater to inexperienced users, due to the technical details about GIFs.