Next.js
Next.js is a lightweight framework for static and server‑rendered applications.
Express
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Redux
Predictable state container for JavaScript apps
Datacamp Light
Convert any blog or website to an interactive learning platform for data science
Webix
Stable releases of Webix UI - JavaScript library for building mobile and desktop web apps
Blueprint
A React-based UI toolkit for the web
Gijgo
Gijgo - Free Javascript Controls
Bem Core
BEM Core Library
Ext JS
Repository for extjs to be used as a git-submodule in projects
Mobx
Simple, scalable state management.
Fishbone.js
A super lightweight (½kb) JavaScript library with automatic method chaining, automatic context binding, event support and simple inheritance. c-{{{-<
Mjml
MJML: the only framework that makes responsive-email easy
Google Closure Library
git-svn mirror of Google's Closure Library.
Path.js
Simple, lightweight routing for web browsers
Straw
Realtime processing framework for Node.js
Stapes
a (really) tiny Javascript MVC microframework
Pixel Craft
A Pixel Art Editor