If you have ever saved an picture from the internet and noticed it appeared with a .jfif extension rather than the standard .jpg, this is common. JFIF — meaning JPEG File Interchange Format — is a standard that defines the way JPEG photos is encoded.
In practical terms, a JFIF image is a JPEG image. The .jfif file type occurs mostly when saving images from some web browsers, especially when the image is delivered without a website proper content-type header.
The .jfif extension started showing to everyday users as some browsers — mainly legacy versions of Microsoft Edge — store JPEG images with the correct .jfif file extension if the server omits the file name.
The fix is simple: simply rename the extension from .jfif to .jpg, or use a conversion tool to produce a correctly named JPG photo. In both cases, the picture quality stays the same.
The simplest approach is a simple rename. For Windows users, activate file extension visibility in File Explorer, right-click the .jfif file, select Rename and change the extension to .jpg.
Try alljpgconverters.com providing completely free web-based JFIF to JPG converter without account necessary.