If you have ever stored an image from the internet and found it downloaded with a .jfif extension instead of the expected .jpg, you are not alone. JFIF — which stands for JPEG File Interchange Format — is a standard which defines the way JPEG photos is saved.
Simply put, a JFIF image is a JPEG image. The .jfif extension appears mostly while saving photos from some web browsers, especially when the image was served with no a proper file type header.
This file extension became visible to most people as some web browsers — particularly older versions of certain browsers — store JPEG images with the proper .jfif file extension when the server omits the download name.
The solution is easy: either rename the extension from .jfif to .jpg, or use a converter tool to generate a website correctly named JPG photo. Either way, the image data stays the same.
The easiest method is a direct file rename. For Windows users, enable file extension display in File Explorer, right-click the .jfif image, select Rename and modify the extension to .jpg.
Use alljpgconverters.com providing completely free web-based JFIF to JPG converter requiring no software necessary.