Slim.js
Fast & Robust Front-End Micro-framework based on modern standards
Officegen
Standalone Office Open XML files (Microsoft Office 2007 and later) generator for Word (docx), PowerPoint (pptx) and Excell (xlsx) in javascript. The output is a stream.
Covervid
Make your HTML5 video behave like a background cover image with this lightweight Javascript plugin / jQuery extension
Buzz
Buzz is a small but powerful Javascript library that allows you to easily take advantage of the new HTML5 audio element. It tries to degrade gracefully on non-modern browsers.
jQuery Chained
Chained Selects jQuery plugin.
Shine.js
A library for pretty shadows.
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.
Jquery.typer.js
A simple jQuery plugin for a slick typing effect.
Expanding Textareas
jQuery plugin for elegant expanding textareas
Cycle2
2nd gen cycling
Drooltip.js
🔥 💦 Minimalistic, powerful and extensible Vanilla JS tooltip plugin
Domenu
Customized version of Nestable for WordPress-like back-end hierarchical menu creation.
Atom
Atom javascript framewok
Joy.js
A Joyful 2D HTML5 Game Engine.
Socket.io
Realtime application framework for Node.JS, with HTML5 WebSockets and cross-browser fallbacks support.
Signal R
Incredibly simple real-time web for .NET
Prime
an OOP javascript library for node.js and the browsers