The Joint Photographic Experts Group (JPEG) is a standard for image compression that is commonly used in digital photography and web design. JPEG is a lossy compression algorithm, which means that it reduces the size of an image by removing redundant or irrelevant data, while still maintaining the visual quality of the image. JPEG is widely used on the web, as it allows images to be displayed quickly and efficiently, without compromising on quality. JPEG is also popular among photographers and designers, as it allows them to manipulate and edit images in a variety of ways, while still maintaining a high level of quality and detail.