Many people have questioned if JPEG and JPG are different formats, you are not alone. This is one of the most common questions in image conversion, and the explanation is clear: JPEG and JPG are identical file type.
The sole difference is the extension — a three-letter relic of legacy Windows OS which could not support four-character suffixes. Regardless, there are sometimes situations when you might need to change files from .jpeg to .jpg.
JPEG is short for Joint Photographic Experts Group, the organization which developed the format in 1992. Legacy versions of Windows needed file extensions to be only three characters, which is why the extension became here JPG.
Nowadays, both file types are recognized by any OS, browser and software. Whether a image is named image.jpg or image.jpeg, it displays the same way.
Despite being the same file type, some older software only accept .jpg extensions and will not accept .jpeg extensions based on the suffix. For these situations, converting the extension from .jpeg to .jpg is enough.
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