The Fyro File Converter supports most common animated picture files, like GIF (Graphics Interchange Format) and APNG (Animated Portable Network Graphics).

The main difference between these two formats is the way they store the animation frames. GIF files use a lossless compression technique, which means that every frame is stored as a full image with no loss of quality. This results in larger file sizes but ensures that the animation looks crisp and clear. In contrast, APNG files use a combination of lossless and lossy compression techniques to store the animation frames, resulting in smaller file sizes but potentially lower quality.

Another important difference is that APNG files support alpha transparency, which means that they can have transparent backgrounds, while GIF files only support a binary transparency which means that each pixel is either fully transparent or fully opaque.

Overall, GIF files are more widely supported across various software and platforms, while APNG files are generally considered to be a higher-quality alternative with more advanced features.