MNG (Multiple-image Network Graphics) is a raster graphics format for animated images. It is closely related to the PNG (Portable Network Graphics) format and was designed as its animation extension. MNG supports various features, including multiple frames, different compression methods for each frame, delta frames (where only the differences from the previous frame are stored), and transparency. This makes it suitable for creating complex animations with potentially smaller file sizes compared to formats like animated GIFs. MNG also supports looping, allowing animations to repeat indefinitely or a specified number of times. While MNG offered advanced features, it never achieved widespread adoption, largely due to the complexity of the format and the rise of other animation formats like animated GIFs and later, more efficient video codecs for web animation. It was intended to be a more robust and feature-rich alternative to animated GIFs, addressing some of their limitations, such as limited color palette and lack of advanced compression. However, the complexity of the format hindered its adoption, and it has largely been superseded by other technologies.