JPG and JPEG are exactly the same image formats. There is no difference between a .jpg image and a .jpeg image — both formats apply the identical JPEG compression standard and save photos in the identical manner.
The only difference is entirely in the extension, being a historical artifact from early computer history. The JPEG format was developed in 1992 by the Joint Photographic Experts Group. When Microsoft released early versions of Windows, the system imposed a restriction: file extensions had to be no more than 3 characters.
Causing the four-character .jpeg suffix to be abbreviated to .jpg for PC users. Apple and Unix platforms, which never had the character limit, used the full .jpeg file extension from the start.
While both file types function the same in virtually all today's programs, some here situations where a service may specifically require the .jpeg file type. For these situations, changing the extension from .jpg to .jpeg is enough.
No real conversion of image data is necessary — simply updating the file extension resolves the problem almost always.
Try alljpgconverters.com offering a completely free online JPG to JPEG converter without software needed.