This is done by retrieving data from the MAL User Info API which is a XML generated database which is then converted to JSON in the application itself.
This application makes use of the Matomari API by FoxInFlame to bypass the missing Cross-Origin Headers that the file doesn't have set. As well as a small modified script of his API to retrieve the user's Anime Favorites.
- Jquery Easing
You can freely use this web application: www.rafaeldejongh-sites.ga/MyAnimeList-User-Stats
The whole application can be found on my Github: www.github.com/RafaelDeJongh/MyAnimeList-User-Stats