Many users have stored an image from the internet and found it downloaded with a .jfif extension instead of the expected .jpg, you are not alone. JFIF — meaning JPEG File Interchange Format — is a format which defines the way JPEG images is saved.
Simply put, a JFIF file is a JPEG image. The .jfif file type occurs mainly after saving images from certain browsers, particularly when the image comes lacking a defined content-type header.
The .jfif extension started showing to regular users since some browsers — mainly legacy versions of Internet Explorer — save JPEG files with the correct .jfif extension when websites fails to specify the filename.
The fix is simple: just rename the file extension from .jfif to .jpg, or process it with a online converter to produce a standard JPG image. In both cases, the picture quality does not change.
The quickest fix is a simple rename. On Windows, turn on 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 more info tool with no account necessary.