Many users have stored an photo from the web and noticed it saved with a .jfif file extension rather than the usual .jpg, this is common. JFIF — short for JPEG File Interchange Format — is a specification that defines how JPEG images is saved.
Simply put, a JFIF image is a JPEG file. The .jfif extension appears mostly while saving files from specific browsers, particularly if the image was served lacking a proper content-type header.
JFIF files started showing to regular users because some browsers — mainly legacy versions of Internet Explorer — save JPEG files with the correct .jfif extension when websites omits the file name.
The fix is simple: either rename the file extension from .jfif to .jpg, or use a converter tool to generate a correctly named JPG file. In each case, the picture quality stays the same.
The easiest method is a direct file rename. For Windows users, enable more info file extension visibility in File Explorer, click the .jfif file, choose Rename and change the extension to .jpg.
Visit alljpgconverters.com for a 100 percent free browser-based JFIF to JPG tool with no account necessary.