Joint Photographic Experts GroupJPG, or JPEG, is one of the most popular image formats, known for its efficient compression algorithms. It reduces file size by discarding some image information, balancing quality and storage efficiency. JPG is widely used in digital photography, web images, and printing, offering a good compromise between image quality and file size. Its universal compatibility, ease of use, and internet-friendly nature make it a staple in image storage and sharing.