GIF is a graphics format that supports both static and animated images. It uses lossless compression, preserving the image quality while keeping file sizes small. GIFs are popular on social media and in web design for creating simple animations or small visual elements. However, they are limited to 256 colors.
AAC is an audio file format that works similar to MP3 but compresses more than MP3. It significantly reduces the audio file size without losing the quality. To reduce the file size it uses the MPEG-4 standard to cut off the low frequency sounds that cannot be heard in a human’s ear.