.png (Portable Network Graphics) The .png format is a raster graphics file format that supports lossless data compression. PNG files are widely used on the internet due to their efficient compression and support for transparent backgrounds.

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