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 image data is encoded.
Essentially, a JFIF photo is a JPEG file. The .jfif suffix appears primarily while saving files from specific browsers, mainly if the image is delivered without a proper MIME type.
This file extension appeared to everyday users as some older browsers — especially older versions of Microsoft Edge — download JPEG photos with the technically accurate .jfif file extension if the server does not specify the download name.
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 simple rename. On Windows, turn on showing file extensions in File Explorer, click the .jfif file, choose click here Rename and update the file extension to .jpg.
Try alljpgconverters.com for a totally free online JFIF to JPG solution without download needed.