Componentjs
ComponentJS -- Powerful run-time Component System for structuring HTML5-based Rich Clients
Famous
Famo.us is a powerful JavaScript framework designed to build rich, interactive web applications. It is the only framework that provides an open source 3D layout engine fully integrated with a 3D physics-based animation engine that can render to DOM, Canvas, or WebGL. Famo.us is currently in public beta.
Contra
Asynchronous flow control with a functional taste to it
Cram
Simple AMD and CommonJS module bundler.
Diagram
JS tool for making node graphs. Inspired by dependency graph
Conditioner
Frizz Free, Environment-aware, JavaScript Modules
Weld
Template antimatter for Node.js (Browsers too!)
Twig.js
JS implementation of the Twig Templating Language
Tock
Timer Object/Class. Kickass!
Terrificjs
Terrific JavaScript Framework
Straw
Realtime processing framework for Node.js
Ng Sweet Alert
:loudspeaker: Sweetalert directive for angular js( angular sweetalert), without writing single javascript code
Highway
A fast, lightweight and simple Javascript routing library with no dependencies.
Boiler
Boiler is a utility library that makes every day tasks in JavaScript easier by providing over 115 methods that work on arrays, collections, functions, numbers, objects, and strings.
Queue
Yet another asynchronous helper library for JavaScript. 387 bytes minified and gzipped!
JayData
JayData is a unified data access library for JavaScript to CRUD data from different sources like WebSQL/SQLite, IndexedDB, MongoDb, ASP.NET WebAPI, OData, HTML5 localStorage, Facebook or YQL. The library can be integrated with KendoUI, Knockout.js, Handlebars.js or Sencha Touch 2 and can be used on Node.js as well.
Hasher
Browser history manager for rich media websites