Many users have downloaded an image from the web and noticed it downloaded with a .jfif file extension in place of the expected .jpg, this is common. JFIF — meaning JPEG File Interchange Format — is a standard defining the way JPEG photos is stored.
In practical terms, a JFIF image is a JPEG photo. The .jfif file type appears primarily after saving photos from specific browsers, particularly if the image is delivered lacking a proper MIME type.
JFIF files became visible to everyday users because some browsers — particularly legacy versions of Internet Explorer — store JPEG photos with the correct .jfif extension if the server fails to specify the file name.
The solution is easy: simply rename the file extension from .jfif to .jpg, or use a online converter to produce a properly labelled JPG file. In both cases, the photo content stays the same.
The quickest fix is read more a file extension change. For Windows users, turn on showing file extensions in File Explorer, right-click the .jfif image, choose Rename and update the extension to .jpg.
Use alljpgconverters.com offering a completely free web-based JFIF to JPG solution without software necessary.