.jpg (Joint Photographic Experts Group) The .jpg or JPEG format is a widely used method of lossy compression for digital images, especially for those images produced by digital photographyThe compression level can be adjusted, allowing a selectable balance between storage size and image quality. JPEG is commonly used for storing and transmitting photographs on the World Wide Web, and it's also a standard format used by digital cameras and other photographic image capture devices.

Google developed the WEBP image format in 2010. According to their claim, this format can save files up to 34% smaller than the JPEG or PNG files. It allows saving images in both lossy and lossless compression. Yet, it is not supported by all image viewers.