Google Image Search File Extension. Images are parsed with machine learning in any event using filetype gif seems to only return gif files. To do this in the search box.
The tool is native to google chrome. Google recently removed the view image button from google image search. Search by file type.
Every once in a blue moon it will randomly just stop working once every 4 or 5 months or so for me.
Alternatively you can also use inurl gif which will look at the actual url to see if the string is contained. Google home advertising. Select a picture from your computer. Right click on an image to search google for related images or versions in different sizes.