JPEG and JPG are the same image formats. There is absolutely no technical difference between a .jpg image and a .jpeg photo — they both apply the very same JPEG compression algorithm and save pictures in the same way.
The sole distinction is only in the file extension, being a legacy issue from early computing. The JPEG format was created in 1992 by the Joint Photographic Experts Group. Early Windows released early versions of Windows, the operating system had a restriction: file extensions were limited to be no more than 3 characters.
Which forced the 4-character .jpeg suffix to be reduced to .jpg for Windows users. Mac and Unix check here systems, which never had this three-character restriction, used the complete .jpeg extension from the beginning.
While both extensions work identically in virtually all modern software, certain scenarios when a service requires the .jpeg file type. For these situations, renaming the file from .jpg to .jpeg is all that is needed.
No actual conversion of image data is necessary — only changing the file extension solves the compatibility concern almost always.
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