PNG (Portable Network Graphics) is a raster-graphics file format that supports lossless data compression. It was created in 1996 as an improved, non-patented replacement for Graphics Interchange Format (GIF) and is now the most widely used lossless image compression format on the Internet.
Unlike JPG, which uses a compression algorithm that discards some image data to reduce file size (lossy), PNG preserves all original data. This makes it perfect for detailed graphics, text-heavy images, and transparent overlays.