Swig
Take a swig of the best template engine for JavaScript.
Loglevel
Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
Curl
A small, fast module and resource loader with dependency management. (AMD, CommonJS Modules/1.1, CSS, HTML, etc.)
ifvisible.js
Checks if the current page is visible or not
Meld
AOP for JS with before, around, on, afterReturning, afterThrowing, after advice, and pointcuts
Enyo
A JavaScript application framework emphasizing modularity and encapsulation
Knockout Projections
Knockout.js observable arrays get smarter
Gas
Google Analytics on Steroids. A Google Analytics implementation with more power features.
Mobservable
Observable data. Reactive functions. Simple code.
Riotjs
The 1kb client side MV* library
Paperclip.js
reactive DOM template engine built for speed, and extensibility
Next.js
Next.js is a lightweight framework for static and server‑rendered applications.
Flow Js
Javascript Library for Multi-step Asynchronous Logic
Lucid Js
LucidJS is a chainable event emitter library. It offers several unique features such as set events, emitter piping, DOM node encapsulation, sub events, along with the usual event triggering and binding. LucidJS emitters also feature meta events that allow listening for event binding and event triggering. LucidJS works in both the browser and node.js.
Derby
MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers
Sproutcore
JavaScript Application Framework - JS library only
Wee
Blueprint for modern web development