Which are two most common graphic file types on the web?

1. JPEG (Joint Photographic Experts Group): JPEG is a widely used lossy compression format for digital images, particularly photographs. It uses lossy compression, which means some data is lost during the compression process, resulting in smaller file sizes. JPEG is commonly used for images on the web due to its ability to achieve high compression ratios while maintaining acceptable visual quality.

2. PNG (Portable Network Graphics): PNG is a raster graphic file format that supports lossless compression. Unlike JPEG, PNG does not lose any data during compression, ensuring the preservation of the original image quality. PNG supports transparency, making it suitable for images with transparent backgrounds or complex shapes. While PNG files are generally larger in size compared to JPEGs, they offer higher quality and are often used for graphics, illustrations, and logos.