JPG to JPEG Exact same Format Different Extension

Wiki Article

JPEG and JPG are exactly the same image formats. There is no technical difference between a .jpg image and a .jpeg file — they both use exactly the same JPEG compression algorithm and store pictures in the exact same format.

The difference is only in the suffix, being a historical artifact from early computer history. The JPEG format was introduced in 1992 by the Joint Photographic Experts Group. The Windows operating system launched Windows in the early era, the operating system enforced a restriction: file extensions had to be no more than 3 characters.

Causing the 4-character .jpeg suffix to be shortened to .jpg for Windows computers. Non-Windows systems, without the character limit, could use the longer .jpeg extension from the start.

While both file types work identically in almost every today's programs, some scenarios in which a service may specifically require the .jpeg file type. In these cases, renaming the file from .jpg to .jpeg is enough.

No actual file conversion is required — just updating the file extension fixes the compatibility concern almost always.

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