Can a GIF have sound?
No — GIF is purely an image format with no way to store audio. Anything described as a “GIF with sound” online is actually a short video. This tool makes that video properly: the GIF’s frames are encoded with their original timing, looped as needed, and muxed together with your audio into a standard MP4.
For social media, a loop length that matches the beat looks deliberate: use the loop-count option and adjust the GIF’s tempo first with the GIF Speed Changer. Without audio, GIF to MP4 is the faster route.
Choosing and trimming audio
Use “Start the audio at” to skip intros and land on the hook. “Whole song” keeps the full track (up to 10 minutes); “Number of loops” makes a short clip by trimming the audio to the GIF’s length × loops. Only use music you have the rights to share. If you need an Apple-friendly file for editing, convert with GIF to MOV and add sound in your editor.