If you have ever downloaded an photo from the web and discovered 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 photos is encoded.
Essentially, a JFIF image is a JPEG file. The .jfif extension appears mostly while saving photos from some web browsers, especially when the image was served with no a defined content-type header.
The .jfif extension started showing to most people since some browsers — mainly legacy versions of Internet Explorer — save JPEG files with the correct .jfif extension when websites fails to specify the filename.
Fixing this is straightforward: simply rename the file extension from .jfif to .jpg, or process it with a online converter to produce a correctly named JPG file. In each case, the picture quality stays the same.
The here quickest fix is a direct file rename. For Windows users, enable file extension visibility in File Explorer, click the .jfif file, choose Rename and change the file extension to .jpg.
Visit alljpgconverters.com for a 100 percent free browser-based JFIF to JPG tool requiring no account necessary.