JPEG images are a popular format for digital photos and graphics. The name stands for Joint Photographic Experts Group, the organization that created the standard. JPEG files use a compression method that reduces file size while maintaining reasonable image quality, making them ideal for sharing and storing pictures online. This format supports millions of colors, which helps in capturing the details and nuances of photographs. However, because of the compression, some image quality may be lost, especially if the file is saved multiple times. JPEG is widely used in various applications, from social media to professional photography.