Crafty : JavaScript Game Engine, HTML5 Game Engine
Moment.js : A javascript date library for parsing, validating, manipulating, and formatting dates.
Anime.js : Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM ...
Logerr : Experimenting with window.onerror, trying to make JavaScript debugging easy.
What does it do?
Provides JavaScript error details in a readable format. ...
Javascript Sound Kit : The Javascript Sound Kit is a wrapper around the ActionScript Sound Object, it makes it possible to use the Sound Object in Javascript the same way yo...
Automatic and enhanced Google Analytics tracking for common user interactions on the web.