Aura
A scalable, event-driven JavaScript architecture for developing widget-based applications. Works with Backbone.js and other frameworks.
Node Pg Migrate
Node.js database migration management for Postgresql
Stampit
Create objects from reusable, composable behaviors.
Ink
An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping
Nuclear Js
Reactive Flux built with ImmutableJS data structures. Framework agnostic.
Durandal
A cross-device, cross-platform client framework written in JavaScript and designed to make building Single Page Applications (SPAs) easy to create and maintain.
Datacamp Light
Convert any blog or website to an interactive learning platform for data science
Head js
The only script in your HEAD. Head JS loads JavaScript files in parallel like images without blocking the page. Your page will be faster. Even with a single combined file.
Script.js
Asyncronous JavaScript loader and dependency manager
Steal
Gets JavaScript
Fast.js
Faster user-land reimplementations for several common builtin native JavaScript functions.
Bootstrap.native
If you are looking for Bootstrap without jQuery or vanilla Javascript for Bootstrap, this is the place to get started.
Qooxdoo
A Universal JavaScript Framework
Jsblocks
Better MV-ish Framework
Batman
Fighting Crime and Kicking Apps
Pencilblue
Full stack online publishing and CMS for Node.js
Overmind
Overmind - Frictionless state management