Apple has just released a new LivePhotosKit API to make it easy for site developers to allow users to post their Live Photos on the Web.
Moving Live Photos past the Apple ecosystem
Use the LivePhotosKit JS library to play Live Photos on your web pages.
Originally introduced back with iPhone 6s, Live Photos are images that also feature a few seconds of video action captured before and after the image. They can be easily shared on the iPhone, iPad, and Mac, but haven’t really taken off elsewhere.
You can read more about the API on Apple’s Developer site.