Hydra.js
Create a scalable, maintainable and module oriented system using Hydra.js
Backbone Nested
A plugin to make Backbone.js keep track of nested attributes.
Simplate
A simple, but powerful, templating engine for JavaScript.
Nuclear Js
Reactive Flux built with ImmutableJS data structures. Framework agnostic.
Maria
The MVC framework for JavaScript applications. The real MVC. The Smalltalk MVC. The Gang of Four MVC.
Lunr.js
A bit like Solr, but much smaller and not as bright
Js Cache
jsCache is a javascript library that enables caching of javascripts, css-stylesheets and images using my localStorage polyfill. This is especially useful when serving your website for mobile phones, which have limited HTTP caching available, but also speeds up your site in an ordinary web browser as it saves HTTP requests and loads all files asynchronously.
ifvisible.js
Checks if the current page is visible or not
Tweet
put twitter on your website with tweet, an unobtrusive javascript plugin for jquery
Theory
Abstraction layer for cross platform JavaScript.
Optics
Profunctor implementation of Lenses, Prisms, Traversals, Isos, etc.
Canjs
Can do JS, better, faster, easier.
Thinkjs
Use full ES2015+ features to develop Node.js applications, Support TypeScript.
Nunjucks
A jinja2-inspired templating system for javascript
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
Hinclude
declarative client-side inclusion for the Web
Eve.js
A <3kb JavaScript file providing three simple methods to organize code into CSS namespaces which magically restrict code to the current context, allowing for dramatic reductions to code size and development time.