UI automated testing framework based on node.js and selenium webdriver
jQuery Mobile Framework
Delightful, performance-focused pure css loading animations.
Automatically display online/offline indication to your users. #hubspot-open-source
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Tiny but perfect jQuery scrollbar plugin
HTML5 <audio> or <video> player with Flash and Silverlight shims that mimics the HTML5 MediaElement API, enabling a consistent UI in all browsers.
Reveal CSS animation as you scroll down a page
lightweight jquery date selector with multi-language support
MJML: the only framework that makes responsive-email easy
Declarative on-scroll reveal animations.
HTTP mocking and expectations library