Use JPG to JFIF - free
Frequently asked questions
Why would I need a .jfif file?
A small number of upload forms and older systems specifically expect the .jfif extension rather than .jpg.
Does this change image quality?
There is a small additional compression pass from the re-encode, though it is not usually visible at normal viewing sizes.
Can I convert several files at once?
Yes, drop multiple JPG files and each is converted individually.