Coub

Creating loops from videos would have been the work of a professional a decade ago, but now anyone can do it just with their phone and the right app. In this case, Coub is the app that you need to make loops.
 
The application can be used to work with any source, and that includes YouTube and GIF. The format doesn’t really matter, and it can be vertical, widescreen, and anything in between.
 
Also, the application has other tools for trimming the videos and to add audio tracks from your library. All your creation can be shared with your friends or on social media with just a few taps.