Foundation
The most advanced responsive front-end framework in the world. Quickly create prototypes and production code for sites and apps that work on any kind of device.
Director
a tiny and isomorphic URL router for JavaScript
Montage
Core framework: Montage simplifies the development of rich HTML5 applications by providing modular components, real-time two-way data binding, CommonJS dependency management, and many more conveniences. Join us on irc.freenode.net#montage or https://groups.google.com/d/forum/montagejs
JsRender
A light-weight but powerful templating engine, highly extensible, without DOM or jQuery dependency.
Sentry
Sentry is a realtime error logging and aggregation platform
Bottlejs
A powerful, extensible dependency injection micro container for JavaScript applications
Steal
Gets JavaScript
Lovli.js
A boilerplate for developing react+redux applications with rethinkdb/horizon as realtime database and express for the server.
Grips
Simple-logic templates
Flight
A lightweight, component-based JavaScript framework
Backbone.stickit
Backbone data binding, model binding plugin. The real logic-less templates.
Pusher Js
Pusher Javascript library
Cloudinary Js
Cloudinary JavaScript library
Ejs
Embedded JavaScript templates for node
Inferno
An extremely fast, React-like JavaScript library for building modern user interfaces
Vue
Intuitive, fast & composable MVVM for building interactive interfaces.
Mousetrap
Simple library for handling keyboard shortcuts in Javascript