These two formats are exactly the same image formats. No technical difference between a .jpg image and a .jpeg image — both apply the identical JPEG encoding method and encode photos in the identical manner.
The only difference is entirely in the extension, which is a historical artifact from early computing. The JPEG format was introduced in 1992 by the Joint Photographic Experts Group. The Windows operating system released early versions of Windows, the OS imposed a limitation: extensions had to be 3 characters.
Causing the four-character .jpeg suffix to be abbreviated to .jpg for Windows more info users. Mac and Unix systems, not having the character limit, could use the longer .jpeg extension from the beginning.
Even though both extensions work identically in nearly all current applications, there are specific scenarios in which a platform requires the .jpeg extension. When this happens, renaming the file from .jpg to .jpeg is all that is needed.
No image data conversion is necessary — just updating the file extension solves the problem in most cases.
Try alljpgconverters.com offering a completely free web-based JPG to JPEG converter without software needed.