J Query.black and White
Clientside grayscale images on any browser
Iframe Resizer
Keep same and cross domain iFrames sized to their content with support for window/content resizing, nesting and multiple iFrames. (Dependency free, IE8+)
Hook.js
Pull to refresh. For the web.
Highway
A fast, lightweight and simple Javascript routing library with no dependencies.
Es6 Shim
ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines
Elastislide
Elastislide is a responsive image carousel that will adapt fluidly in a layout. It is a jQuery plugin that can be laid out horizontally or vertically with a pre-defined minimum number of shown images
Componentjs
ComponentJS -- Powerful run-time Component System for structuring HTML5-based Rich Clients
Backgrid
Finally, an easily stylable semantic HTML data grid widget with a Javascript API that doesn't suck.
Augment.js
Modern JavaScript in your IE
Apricot
A simple Hpricot Clone for nodejs.
Aos
Animate on scroll library
Isometric
JSIso - An HTML5 Canvas Tile Engine
Styled Components
Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅
Rest
RESTful HTTP client for JavaScript
jQuery Validation
jQuery Validation Plugin
jStorage
jStorage is a simple key/value database to store data on browser side. As a bonus it is also a local pubsub platform to sync data between tabs/windows
Vux
Mobile UI Components based on Vue & WeUI