MP4 is the better GIF
MP4 with H.264 is the most widely supported video format there is. Converting a GIF to MP4 gives you a file you can post on social networks that do not accept GIFs, send in messengers without hitting size limits, put into PowerPoint, Keynote or Google Slides, or embed on a web page as a muted looping video that loads far faster than the GIF.
The converter keeps the size of the GIF, adding one row or column only when a side has an odd number of pixels, because H.264 requires even dimensions. Every frame is encoded with its own duration, so pauses and fast parts stay as they were.
Looping and transparency
Unlike a GIF, an MP4 file does not loop by itself; whether it repeats depends on the player. Websites can loop it with one attribute, and most social apps loop short clips anyway. For players that do not, use Repeat to put the animation into the video 2, 3, 5 or 10 times.
MP4 has no transparent pixels. Transparent parts of the GIF are filled with the background color, white by default, so pick the color of the page or slide where the video will appear.
About GIF
GIF is an image format that can hold an animation. It plays everywhere, including email and old chat apps, but with only 256 colors per frame and weak compression animated GIFs get large quickly.
About MP4
MP4 with H.264 video is the most compatible video format. It plays on phones, computers, TVs and every website or chat app that accepts video.