twineconvert

Format guide

JPEG

Joint Photographic Experts Group

JPEG is the same format as JPG, different file extension, identical bytes. The .jpeg extension was the original; .jpg was adopted because early Windows versions limited extensions to 3 characters. Today the two are fully interchangeable.

How to open a JPEG file

Identical to JPG, every modern OS, browser, and image editor opens .jpeg files without conversion.

Primary use

Photographs and web imagery (interchangeable with .jpg).

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