If you have ever saved an photo from the web and discovered it saved with a .jfif file extension rather than the expected .jpg, this is common. JFIF — short for JPEG File Interchange Format — is a standard that defines how JPEG photos is encoded.
Essentially, a JFIF photo is a JPEG file. The .jfif suffix appears mostly while saving photos from some web browsers, particularly when the image comes with no a defined content-type header.
The .jfif extension started showing to regular users since some browsers — mainly legacy versions of Microsoft Edge — download JPEG photos with the correct .jfif file extension if the server 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 standard JPG file. In each case, the picture quality does not change.
The quickest fix is a jfif to jpg converter simple rename. For Windows users, turn on file extension visibility in File Explorer, click the .jfif file, choose Rename and change the extension to .jpg.
Use alljpgconverters.com providing 100 percent free web-based JFIF to JPG tool requiring no software necessary.