Convert JPEG Files on Mac

JPEG (Joint Photographic Experts Group) is an image format using the .jpg and .jpeg extensions. Consul converts JPEG files to 43 other formats, and 55 formats to JPEG. Rename a file's extension in Finder and Consul handles the conversion automatically.

What is JPEG?

JPEG is the most widely used image format for photographs, standardized in 1992 by the Joint Photographic Experts Group. Its lossy compression trades away some fine detail in exchange for dramatically smaller files, which is why nearly every digital camera and phone saves photos as JPEG and why it remains the dominant image format on the web.

JPEG uses lossy compression: encoders permanently discard some detail to keep files small. Converting to a lossless format later preserves the file exactly as it is now, but that discarded detail doesn't come back. It does not support transparency. Files can carry EXIF/XMP metadata.

JPEG was developed by the Joint Photographic Experts Group and is an open standard.

Opening JPEG files on a Mac

Quick Look previews JPEG files. Select one in Finder and press Space. Preview opens JPEG files. For a one-off conversion, Preview can also export JPEG to PNG, TIFF and PDF.